Category: Denied Claims & Appeals

By the Editorial Team. Reviewed and updated on August 19, 2026.

This article is educational and independent. It is not medical, legal, or insurance advice, and it is not a diagnosis or a treatment recommendation. Coverage rules, benefit programs, and legal rights vary by state, by plan, and by individual circumstance. Confirm details with your plan, a licensed professional, or the official sources named in this article.

If you are in crisis or thinking about harming yourself, help is available right now, free and confidential. Call or text 988 to reach the 988 Suicide & Crisis Lifeline, or chat at 988lifeline.org. You can also text HOME to 741741 to reach the Crisis Text Line. For substance use or mental health treatment referrals, SAMHSA’s National Helpline is 1-800-662-4357. If someone is in immediate danger, call 911.

An ERISA appeal for mental health benefits usually begins with a discovery that feels backwards: the state agency you thought would protect you has no power over your plan. Picture a parent whose 19-year-old is four weeks into an intensive outpatient program when the employer’s health plan stops paying. She calls the state Department of Insurance, explains everything, and hears a sentence she has never heard before. “That plan is self-funded. It’s governed by federal law. We can’t intervene.”

She has just met ERISA.

The Employee Retirement Income Security Act of 1974, called ERISA from here on, is the federal law that governs most job-based benefits in the private sector, including the health coverage that pays for therapy, psychiatric medication management, and higher levels of behavioral health care. It comes with its own appeal deadlines, its own document rights, and one rule that changes everything: the file you build during the internal appeal is usually the only file a federal court will ever look at.

This article covers that federal machinery in depth. It is not a general appeal guide. For how to read the denial letter itself, the common denial reasons, and the evidence that moves reviewers, see our companion piece on what to do when a mental health insurance claim is denied. Here, the subject is the ERISA-specific layer sitting on top of all that, the layer most people find out about too late.

What ERISA Actually Is, and Which Plans It Covers

Congress passed ERISA in 1974 to set federal standards for employee benefit plans, and it handed enforcement to the U.S. Department of Labor (DOL) through its Employee Benefits Security Administration (EBSA). If you get health coverage through a private-sector job, yours is almost certainly an ERISA plan. Coverage through a spouse’s private employer counts too.

The exceptions matter just as much as the rule:

• Governmental plans. Coverage for employees of a state, city, county, public school district, or the federal government is not governed by ERISA.
• Church plans. Plans established by churches and certain church-affiliated employers, including some religious hospital systems, are generally exempt unless they opted in.
• Individual and marketplace policies. A plan you bought yourself, on or off the exchange, is not an ERISA plan.
• Medicaid and Medicare. Public programs run on their own appeal systems entirely.

Within the ERISA world there is a second split that decides who else can help you: self-funded versus fully insured. In a fully insured plan, the employer buys a policy from an insurance company and the insurer pays claims from its own money. In a self-funded plan, the employer pays claims out of company assets, and an insurance company usually just administers the paperwork. The card in your wallet looks identical either way. The rights behind it do not.

	Fully insured ERISA plan	Self-funded ERISA plan
Who pays the claims	An insurance company, from premiums	The employer, from its own assets
Does state insurance law apply?	Yes, state mandates and insurance rules bind the insurer	Generally no. ERISA preempts state regulation of the plan
State insurance department complaint	Available and worth filing	Generally not available. EBSA is the regulator
External review path	Usually the state external review program	Usually the federal external review process
Federal claims-procedure deadlines	Apply	Apply
180-day internal appeal window	Applies	Applies

Three ways to find out which plan you have

1. Ask HR or the benefits office one exact question: “Is our health plan self-funded or fully insured?” Most benefits administrators can answer immediately. Get the answer in an email if you can.
2. Read the Summary Plan Description (SPD). The SPD is the plain-language booklet every ERISA plan must give participants. Near the back, look for a section titled “Statement of ERISA Rights.” If it exists, you have an ERISA plan. The funding arrangement is often described in the same section or on the SPD’s identification page.
3. Look up the plan’s Form 5500. Most ERISA plans file this annual report with the federal government, and it is public. Search the employer’s name in the DOL’s EFAST2 filing system. A Schedule A attached to the filing lists insurance contracts, which points toward a fully insured arrangement. No insurance schedule for health benefits usually means self-funded.

Ten minutes of checking here saves months of appealing to the wrong agency.

Why an ERISA Appeal for Mental Health Benefits Follows Different Rules

Federal preemption is the reason this law has teeth. ERISA displaces most state-law remedies that would otherwise apply to a benefits dispute. The practical consequences are blunt:

• No jury trial. ERISA benefit cases are decided by a federal judge.
• No emotional-distress or punitive damages. If you win, the remedy is generally the benefit itself, sometimes with interest, and possibly attorney fees at the judge’s discretion. A state-law bad-faith lawsuit, with its larger damages, is usually preempted.
• Review is confined to the administrative record. In most cases, the judge decides based on the file that existed when the plan issued its final denial. Witnesses do not testify. New medical records do not come in.

Read that third point twice, because it inverts the instinct most people bring to an appeal. The internal appeal is not a formality you get through on the way to a “real” fight. Under ERISA, the internal appeal is the real fight. Whatever you want a judge to see someday must go into the plan’s hands now.

There is one more consequence worth naming calmly. Because the stakes concentrate in the paperwork stage, ERISA rewards people who are organized and punishes people who assume they can fix things later. Neither has anything to do with how sick someone is or how strong the clinical case may be. That is simply how the statute is built.

Every Deadline in One Table

The DOL’s claims-procedure regulation, 29 CFR 2560.503-1, sets the minimum timelines for ERISA group health plans. Plans may be more generous. They may not be stricter.

Claim type	Plan’s initial decision	Your window to file the internal appeal	Plan’s appeal decision
Urgent care claim (delay could seriously jeopardize health)	As soon as possible, no later than 72 hours	180 days from the denial notice	As soon as possible, no later than 72 hours
Pre-service claim (care that needs approval before it happens, such as prior authorization for a residential admission)	15 days, with one 15-day extension for reasons beyond the plan’s control	180 days from the denial notice	30 days (or 15 days per level if the plan uses two mandatory appeal levels)
Post-service claim (care already delivered, now billed)	30 days, with one 15-day extension	180 days from the denial notice	60 days (or 30 days per level if the plan uses two levels)
Concurrent care (plan cuts off a course of treatment it already approved)	Advance notice, early enough for you to appeal before the care ends	180 days, but appeal immediately if treatment is ongoing	Urgent timelines apply when treatment is in progress

Two details hide in that table. First, the 180 days runs from the date of the adverse benefit determination, the formal name for a denial, not from the day you understood it or the day the facility told you. Second, the concurrent care row is where behavioral health lives. Coverage for an inpatient or intensive outpatient episode is rarely denied outright; it gets approved in short blocks and then terminated at a utilization review checkpoint. The regulation treats that termination as its own appealable decision with urgent-speed handling while care continues.

The Administrative Record, or Why the Internal Appeal Is the Whole Game

Think of the administrative record as a box. Everything the plan had in front of it when it issued the final denial goes in the box: your claim, the clinical records submitted, the reviewers’ notes, the criteria applied, your appeal letter, and every attachment. When an ERISA case reaches federal court, the judge generally opens that box and nothing else.

A treating psychiatrist’s letter written six months after the final denial? Usually outside the box. Updated symptom scores showing the relapse that followed the coverage cutoff? Outside the box. The parity analysis nobody thought to request? Outside the box, unless someone asked during the appeal.

This is why an ERISA appeal for mental health benefits should be assembled like a filing, not written like a complaint. The goal is not only to persuade the plan’s second reviewer. It is to load the record so completely that, if the denial stands, a judge later sees a one-sided file: detailed clinical evidence on your side, and a thin rationale on the plan’s.

The sequence, in order:

1. Request the claim file and the criteria the day the denial arrives. In writing. This starts the record-building and often reveals exactly which criterion the reviewer said was unmet.
2. Map the denial rationale. Match each stated reason to the plan language and the clinical guideline it cites.
3. Answer every criterion with dated evidence. Treating clinicians respond element by element, quoting chart entries. The companion article covers what this evidence looks like in practice.
4. Add the systemic arguments. Parity comparisons, procedural violations, guideline mismatches. These go in now or they may never be heard.
5. Submit everything before the plan’s final decision, with delivery proof, and keep an exact copy of the package.
6. Respond to anything new. If the plan produces a new expert report or a new rationale on appeal, you have a right to see it and answer it before the decision is final. Use that right.

People sometimes ask whether a short, polite appeal letter is enough for round one, with the heavy evidence saved for later rounds. Under ERISA the honest answer is no. There may not be a later round that accepts evidence. Front-load everything.

Documents the Plan Must Give You for Free

Few people use these rights. All of them are written into federal law, and requesting the documents costs nothing.

• The complete claim file. Every document, record, and communication relevant to your claim, free of charge, on request, after a denial.
• The specific criteria relied on. If the denial rested on an internal guideline, protocol, or medical necessity criterion, you are entitled to a copy. For a behavioral health denial, this is usually the single most useful document in existence.
• The reviewer’s identity and qualifications. You can ask for the identification of the medical experts whose advice the plan obtained, whether or not the plan relied on that advice. For mental health denials, whether the reviewer had behavioral health training is worth knowing and worth putting in the record.
• The Summary Plan Description and the plan document. The SPD summarizes; the plan document controls. The plan administrator must furnish copies within 30 days of a written request, and a court can impose a penalty of up to $110 per day for ignoring one. Cite that politely if the documents do not arrive.
• The parity comparative analysis. Plans must prepare written analyses comparing how nonquantitative treatment limits, such as prior authorization and concurrent review, apply to behavioral health versus medical care. Our post on the federal parity law explains what these analyses are supposed to show.

Send document requests by a method that produces a receipt, and date everything. In ERISA disputes, the paper trail about the paper trail matters.

Full and Fair Review: What the Plan Owes You on Appeal

“Full and fair review” is the regulation’s phrase, and it carries specific, checkable requirements rather than a vague promise of fairness:

• A fresh reviewer. The appeal must be decided by someone who neither made the original decision nor reports to the person who did.
• No deference. The appeal reviewer must look at the claim anew, not merely check whether the first denial was defensible.
• Appropriate clinical consultation. Where the denial involves medical judgment, and a mental health medical-necessity denial always does, the plan must consult a health care professional with appropriate training and experience in the field.
• Everything considered. The plan must take into account all information you submit, whether or not it was part of the original claim.
• New evidence disclosed in time to respond. For health plan appeals, any new evidence or new rationale the plan develops must be shared with you, free, sufficiently in advance of the deadline so you can respond before the final decision.

Each of these doubles as an argument. A plan that lets the same medical director deny the claim twice, or that springs a new reviewer report in the final denial letter without giving you a chance to answer it, has handed you a procedural violation to document. Procedural violations do two things: they support “deemed exhaustion,” covered next, and they can persuade a court to review the case with fresh eyes instead of deferring to the plan.

When the Plan Blows Its Own Deadlines: Deemed Exhaustion

Ordinarily you must finish the plan’s internal appeal process, called exhausting administrative remedies, before filing suit. The regulation builds in an exception with a plain purpose. If the plan fails to follow its own claims procedures, you may treat the internal process as exhausted and proceed to external review or to court.

Missed decision deadlines are the cleanest trigger. A pre-service appeal decided on day 45 instead of day 30, an urgent appeal that takes two weeks, a claim file request ignored for months. For health plans there is a narrow exception for minor slip-ups: violations that are truly de minimis, non-prejudicial, and attributable to good cause do not open the door. A pattern of delay does.

What to do about it is unglamorous. Keep a dated log. Note when each submission went in, when each response was due under the table above, and when it actually came. If the plan runs past a deadline, send a short letter stating the facts and asking for the decision. You are not required to threaten anything, and calm documentation reads better in a record than outrage does.

External Review for Medical Necessity Denials

Denials that turn on medical judgment, which includes medical necessity, level of care, and experimental-treatment determinations, carry a second track after the internal appeal: independent external review. An independent review organization (IRO), staffed by clinicians with no financial stake in the outcome, re-decides the question, and its decision binds the plan.

The ERISA wrinkles:

• Self-funded plans generally use the federal external review process rather than a state program, since state insurance law does not reach them. Fully insured ERISA plans typically route through the state program.
• You generally have 4 months after the final internal denial to request external review.
• Expedited external review is available when care is urgent, and in urgent situations it can run at the same time as the internal appeal rather than after it.
• External review is essentially free to you, and using it does not waive the right to sue if the IRO sides with the plan.

One strategic note follows from the administrative record rule. The IRO reviews the file too. An external review request supported by the fully loaded record you built during the internal appeal is a different proposition from a bare request form. The federal government explains the process and timelines at HealthCare.gov’s external review page.

If It Ends Up in Court: The Standard of Review, in Plain Language

Federal courts review ERISA benefit denials under one of two standards, and the difference is the whole ballgame.

De novo review means the judge decides for herself whether the benefit was owed, giving the plan’s decision no special weight. Arbitrary-and-capricious review, sometimes called abuse-of-discretion review, means the judge asks only whether the plan’s decision was reasonable, even if the judge might have decided differently. Plans win far more often under the second standard.

Which standard applies usually depends on whether the plan document grants the administrator discretionary authority to interpret the plan, standard boilerplate in most SPDs. Some states have banned those discretionary clauses in insured policies, which is one more reason the self-funded question from the top of this article matters.

	ERISA benefits lawsuit	Typical non-ERISA insurance lawsuit
Who decides	A federal judge, on the papers	Often a jury
Evidence considered	Generally the administrative record only	Discovery, witnesses, new expert testimony
If you win	The benefit owed, possibly interest and attorney fees	Benefits plus, in some states, bad-faith and emotional-distress damages
Deference to the plan	Often substantial, if the plan reserved discretion	Generally none

None of this is a reason to give up on a strong claim, and none of it is legal advice about yours. It is context for a decision people face late in the process. ERISA litigation is a specialized area of federal practice, and the free resources listed below can explain the process without selling anything. The same administrative-record logic, by the way, governs long-term disability claims for mental health conditions under employer plans, where it bites even harder because those policies often cap mental health benefits at 24 months.

Mental Health Arguments That Belong in the Record

Beyond the clinical evidence itself, three arguments show up repeatedly in behavioral health appeals under ERISA plans, and each must be raised during the internal appeal to preserve it.

Parity violations. The Mental Health Parity and Addiction Equity Act (MHPAEA) requires that treatment limits on mental health and substance use benefits be no more restrictive than the limits on comparable medical and surgical benefits. If the plan requires concurrent review every five days for psychiatric care but every thirty for rehabilitation after surgery, or applies tighter medical-necessity screens to behavioral health, say so in the appeal and request the plan’s comparative analysis. A parity argument reframes the dispute from “was this care necessary” to “is this limit even lawful,” and plans respond to compliance questions differently than clinical ones.

Guideline mismatch. Ask which clinical criteria the reviewer applied and compare them against generally accepted standards of care for the condition and level of care. Where a plan’s internal guideline is narrower than accepted professional standards, that gap belongs in the record, stated specifically: which criterion, narrower how, per which professional standard.

Concurrent and prior-authorization procedure. Level-of-care terminations mid-episode must follow the concurrent care rules in the deadline table, and pre-service denials must arrive within the regulation’s windows. How prior authorization works for mental health treatment is its own subject, but for ERISA purposes the point is narrow: every procedural miss gets documented, dated, and included.

A Worked Example (Illustrative Composite, Not a Real Person)

The following is a fictional composite created to show how the pieces fit together. It does not describe any real individual, employer, plan, or facility.

Dana, 34, works for a logistics company with about 900 employees. Her coverage card carries a well-known administrator’s logo, but the SPD’s “Statement of ERISA Rights” and a Form 5500 with no health insurance schedule confirm the plan is self-funded. In March, after two hospitalizations in six months, her psychiatrist recommends a partial hospitalization program (PHP). The plan approves two weeks, then terminates coverage at a concurrent review, stating she can be managed with weekly outpatient therapy.

Day 1. Dana’s sister, helping her, sends a written request for the complete claim file, the level-of-care criteria applied, and the identification and specialty of the reviewing clinician. She photographs the letter and pays for tracking.

Day 12. The file arrives. The reviewer is a physician, though not a psychiatrist, and the denial rests on one criterion: absence of documented functional impairment requiring daily structure. The plan’s guideline turns out to require “imminent risk” language that the generally accepted level-of-care standards for PHP do not.

Days 12 through 30. The appeal package comes together. A four-page letter from the treating psychiatrist answers the impairment criterion with dated chart evidence: missed medication doses documented on eleven days in February, a job accommodation letter, emergency department records from both hospitalizations. A separate two-page section argues the guideline is narrower than accepted standards and names the standard. A third section requests the plan’s parity comparative analysis for concurrent review of behavioral health versus medical rehabilitation, noting that this ERISA appeal for mental health benefits preserves the parity issue for any later proceeding.

Day 31. The package is filed, tracked, and copied, well inside the 180-day window but fast because treatment is interrupted. The letter requests expedited handling since the episode of care is ongoing.

Day 34. The plan’s appeal reviewer, this time a psychiatrist, requests a call with the treating doctor. During it, the reviewer cites a new internal report. Dana’s sister requests the report in writing the same day, invoking the right to see and respond to new rationales before a final decision, and submits a one-page reply from the psychiatrist two days later.

Day 38. The appeal is granted in part: PHP restored for three weeks, with step-down review after. Not everything. But the parity request, the guideline comparison, the response to the new report, and every date now live permanently in the administrative record. If any later dispute arises, the box is full.

Notice what did the work. Nothing dramatic. Requests made in writing, deadlines tracked, criteria answered with dates, and rights exercised the moment they became available.

Your ERISA Appeal Checklist

Copy this into a document and add dates as you go.

• [ ] Confirm the plan type: ERISA or not, self-funded or fully insured. Note how you confirmed it.
• [ ] Write the denial letter’s date at the top of your file and calculate the 180-day appeal deadline.
• [ ] Send a written request for the complete claim file, the specific criteria relied on, and the reviewer’s identity and qualifications.
• [ ] Request the SPD and full plan document in writing if you do not have current copies. Note the 30-day clock.
• [ ] Request the parity comparative analysis for the limitation that caused the denial.
• [ ] Ask whether the plan has one or two mandatory appeal levels, and get the answer in writing.
• [ ] Build the appeal to answer every cited criterion with dated clinical evidence.
• [ ] Add the systemic arguments: parity, guideline mismatch, procedural violations.
• [ ] If treatment is ongoing, request expedited handling and note the concurrent care rules.
• [ ] Submit with delivery tracking. Keep an exact copy of the full package.
• [ ] Calendar the plan’s decision deadline: 72 hours urgent, 30 days pre-service, 60 days post-service.
• [ ] If the plan produces new evidence or a new rationale, request it and respond before the final decision.
• [ ] Log every deadline the plan misses, with dates, for a possible deemed-exhaustion position.
• [ ] If the final denial rests on medical judgment, file for external review within 4 months.

Where to Get Free, Unbiased Help

Every resource below is free, and none of them sells services.

• EBSA benefits advisors. The Employee Benefits Security Administration answers participant questions about ERISA plan rights and can contact a plan informally on a participant’s behalf, which sometimes shakes loose documents or a decision. Start at the DOL’s Ask EBSA page. The DOL’s plain-language publication Filing a Claim for Your Health Benefits covers the same claims procedures described here.
• State Consumer Assistance Programs, in states that operate them, help consumers prepare appeals at no charge.
• State Departments of Insurance, for fully insured plans only, take complaints and often run the external review program.
• Legal aid organizations and law school clinics sometimes handle benefits matters at no cost based on income, and some run health-law projects that know ERISA well.
• Protection and Advocacy agencies, one in every state and territory, work on rights issues for people with mental health conditions, including benefits access.

If the underlying question is what your plan should be covering in the first place, our overview of how insurance covers mental health treatment maps the benefit categories before any dispute begins.

Frequently Asked Questions

How do I know whether my health plan is an ERISA plan?

If the coverage comes through a private-sector employer, yours or a family member’s, it almost certainly is. Government employee plans, church plans, individual market policies, Medicaid, and Medicare are not ERISA plans. The SPD’s “Statement of ERISA Rights” section, a Form 5500 filing, or a direct question to HR settles it.

How long do I have to file an ERISA appeal for mental health benefits?

At least 180 days from the date of the adverse benefit determination for the internal appeal. If the denial cut off treatment in progress, appeal immediately rather than using the full window, because concurrent care runs on urgent timelines.

What exactly is the administrative record?

The complete file before the plan when it made its final decision: the claim, the clinical evidence, the reviewers’ reports, the criteria, and your appeal submissions. In most ERISA lawsuits, a federal court reviews that record and nothing beyond it.

Can I add new evidence after the internal appeal is over?

Usually not, once the case is in federal court. That is the central reason to submit every piece of clinical evidence, every expert response, and every argument during the internal appeal, however early in the process it feels.

Does the plan really have to give me its criteria for free?

Yes. When a denial relies on an internal rule, guideline, or medical necessity criterion, the plan must provide a copy free of charge on request, and it must also identify the medical experts whose advice it obtained.

What happens if the plan misses its own decision deadline?

Under the claims-procedure regulation, a plan’s failure to follow its procedures can let you treat the internal process as exhausted and move to external review or court. Minor, harmless slip-ups do not count, so keep a precise dated log to show the violation was real.

Can I skip the internal appeal and go straight to court?

Generally no. Courts expect administrative remedies to be exhausted first, and skipping the appeal also means facing a judge with an empty record. Deemed exhaustion after serious plan violations is the main exception.

Is external review available if my employer’s plan is self-funded?

Yes, for denials involving medical judgment such as medical necessity or level of care. Self-funded plans generally use the federal external review process, and the independent review organization’s decision binds the plan.

What can a court actually award in an ERISA benefits case?

The benefit that should have been paid, sometimes interest, and possibly attorney fees at the court’s discretion. Emotional-distress and punitive damages are generally unavailable, and there is no jury.

Do parity arguments really matter in an individual appeal?

They can. MHPAEA applies to ERISA plans, and a documented request for the plan’s comparative analysis puts a compliance question into the record that regulators and courts take seriously. It also occasionally changes the plan’s posture during the appeal itself.

My employer is a religious hospital system. Does ERISA apply to me?

Maybe not. Church plans are generally exempt unless the plan elected ERISA coverage, and whether a church-affiliated employer’s plan qualifies for the exemption can be genuinely unclear. State law may govern instead. This is a plan-specific question worth confirming through the SPD and, if needed, EBSA.

Is the SPD enough, or do I need the full plan document?

Get both. The SPD is the summary you were given; the plan document is the governing contract, and where they differ, the difference itself can matter. Both must be furnished within 30 days of a written request to the plan administrator.

Final Thoughts

Start with one letter. Ask the plan, in writing, for the complete claim file, the specific criteria behind the denial, and the qualifications of the person who reviewed it. Those pages tell you what the ERISA appeal for mental health benefits has to prove, and requesting them costs nothing while committing you to nothing.

Then build the record like it is the only chance to be heard. Under this particular law, it usually is.

This article is for general informational purposes only and does not constitute medical, legal, insurance, or financial advice. It is not a diagnosis, a treatment recommendation, or an evaluation of any individual claim. Mental health coverage rules, parity requirements, appeal rights, disability standards, and employment protections vary by plan, by state, and by individual circumstance, and they change over time. This site is independently operated. It is not a law firm, an insurance company or advisor, a healthcare provider, a government agency, or an advocacy organization, and it does not represent anyone. Reading this article creates no professional relationship of any kind. Always confirm current requirements with your plan documents, a licensed professional in your state, or the official government sources cited above before making any decision.

By the Editorial Team. Reviewed and updated on August 8, 2026.

This article is educational and independent. It is not medical, legal, or insurance advice, and it is not a diagnosis or a treatment recommendation. Coverage rules, benefit programs, and legal rights vary by state, by plan, and by individual circumstance. Confirm details with your plan, a licensed professional, or the official sources named in this article.

If you are in crisis or thinking about harming yourself, help is available right now, free and confidential. Call or text 988 to reach the 988 Suicide & Crisis Lifeline, or chat at 988lifeline.org. You can also text HOME to 741741 to reach the Crisis Text Line. For substance use or mental health treatment referrals, SAMHSA’s National Helpline is 1-800-662-4357. If someone is in immediate danger, call 911.

Start Here

Prior authorization for mental health treatment is the step that decides, before care happens, whether your plan will pay for it. On paper it’s an administrative formality. In practice it’s the single most consequential thing standing between a person and a level of care, and the part that catches families off guard isn’t the first decision at all.

It’s the second one. And the third.

Because behavioral health authorizations are usually granted in small increments — five days, seven days, twelve sessions — and each increment ends with a review. Someone who was approved on Monday can be told on Friday that coverage stops tomorrow, while treatment is still going on and everyone involved thinks it’s working. That’s concurrent review, and almost nobody knows it’s coming until it arrives.

What follows is how the process actually operates: who does the reviewing, what medical necessity criteria are and where they come from, why authorization denials aren’t the same thing as claim denials, what a peer-to-peer call can and can’t accomplish, how expedited timelines work when care is urgent, what to have ready in advance, and when a pattern of authorization requirements starts to look like a parity question.

What Prior Authorization for Mental Health Treatment Actually Is

It’s a coverage decision made in advance. The plan, or a behavioral health company it contracts with, reviews the request against written criteria and says yes, no, or yes-with-limits before the service is delivered. The clinical decision to treat belongs to your clinician. The payment decision belongs to the plan, and those two decisions are separate — which is why a doctor can say a service is needed and the plan can still decline to pay for it.

The whole category is called utilization management, and prior authorization is one of three moments in it.

Type of review	When it happens	What it decides	What a denial is called
Prospective (prior authorization)	Before care starts	Whether the service is authorized at all, and for how much	Pre-service adverse benefit determination
Concurrent	During an ongoing course of care	Whether the authorized level continues	Concurrent care determination
Retrospective	After care is delivered	Whether the claim gets paid	Post-service adverse benefit determination

Behavioral health carries more of this than most of medicine. Some of the reasons are structural: many plans carve out behavioral health to a separate vendor with its own criteria and its own review staff, higher levels of care are expensive and open-ended in a way a scheduled surgery isn’t, and there’s no lab value that settles whether residential treatment is appropriate. The absence of an objective test means the decision rests on documented clinical judgment, and documented is the operative word.

Services that commonly require authorization:

• Inpatient psychiatric admission and continued stay
• Residential treatment, both mental health and substance use
• Partial hospitalization programs (PHP) and intensive outpatient programs (IOP)
• Applied behavior analysis and other intensive outpatient services
• Psychological and neuropsychological testing beyond a threshold number of hours
• Certain procedures and device-based treatments
• Some medications, through the pharmacy benefit rather than the medical benefit
• In some plan designs, outpatient therapy beyond a set number of visits

Whether the underlying benefit exists at all is a different question, covered in does insurance cover mental health treatment. Routine outpatient therapy is authorization-free in most commercial plans now. Most, not all. Check yours rather than assuming, because a plan that requires review after a certain visit count usually says so in a sentence buried in the utilization management section.

Medical Necessity Criteria and Where They Come From

Every authorization decision is measured against a written standard. Plans don’t invent it per case; they adopt a criteria set, and which one they adopt matters enormously.

Broadly there are two families. Proprietary criteria are developed and licensed by commercial vendors, updated annually, and used across many plans. Nonprofit clinical specialty criteria are developed by professional societies and address level-of-care placement using multidimensional assessment. Several states now require plans to use generally accepted standards from nonprofit specialty organizations for behavioral health, precisely because litigation and regulatory findings have repeatedly focused on proprietary criteria being more restrictive than clinical consensus.

You can get the criteria applied to your case. That’s not a favor. For group health plans, if a decision relied on an internal rule, guideline, protocol, or clinical criterion, a copy has to be provided free of charge on request, and for medical necessity denials the plan must also explain the scientific or clinical judgment applied to your circumstances. The Department of Labor sets out these claims-procedure obligations in its consumer guide, Filing a Claim for Your Health Benefits.

Ask for them at the start, not after a denial. A treating clinician who knows which criteria will be applied writes a different request — one that addresses the elements a reviewer is looking for, in the reviewer’s own vocabulary.

What criteria typically look at for a level of care

1. Severity of current symptoms and the risk picture, documented with observations rather than conclusions.
2. Functional impairment: what the person can no longer do, in specific terms.
3. Response to treatment at lower levels of care, with dates and outcomes.
4. Whether the person’s living environment can support treatment at a lower intensity.
5. Co-occurring medical or substance use conditions affecting what’s safe or workable.
6. Willingness to participate, and any documented barriers to engagement.
7. A treatment plan with measurable goals and a plan for stepping down.

The step-down piece surprises people. Reviewers frequently want to see, on day two of an admission, what the discharge plan is and what has to be true for the person to move to the next level. A request without one reads as open-ended, and open-ended requests get shorter authorizations.

Concurrent Review: The Part That Blindsides People

An initial approval is not an approval of a course of treatment. It’s an approval of a number of days or sessions, after which the plan looks again.

Here’s how the rhythm usually runs. A residential admission might be authorized for three to seven days initially. The facility’s utilization review staff then submit clinical updates on a set schedule, sometimes every day or two, sometimes every few days. A reviewer at the plan reads the update against the continued-stay criteria and either extends or doesn’t. If the criteria for that level are no longer documented as met, coverage for further days is denied even though the person is currently in the building receiving care.

Families describe this as coverage being “cut off.” Legally it’s a concurrent care determination, and it comes with specific protections that get overlooked.

• Federal claims rules generally treat a reduction or termination of an already-approved ongoing course of treatment as an adverse benefit determination in its own right, with appeal rights attached.
• The plan generally must give notice sufficiently in advance of the reduction or termination to allow an appeal to be requested and decided before the change takes effect.
• If the ongoing care is urgent, a request to extend it generally has to be decided quickly — federal rules for group health plans set a short window for urgent concurrent claims when the request is made a reasonable time before the authorized care ends.

Read that middle bullet twice. Advance notice exists so that an appeal can happen while care continues, and the practical version is that timing your appeal request immediately can matter more than what’s in it. Ask for the written determination the same day you’re told verbally.

Two other things worth knowing. The facility usually learns of the denial before you do, because the conversation happens between utilization review staff and the plan. And a facility that keeps a person past the authorized days may bill the patient for those days, so it’s worth asking directly, in writing, what happens next and what the financial exposure is.

Peer-to-Peer Review: What It Can and Can’t Do

When a reviewer is leaning toward denial, plans generally offer the treating clinician a chance to speak directly with the plan’s physician reviewer. That’s the peer-to-peer, sometimes called a doc-to-doc.

It’s a short call. Often ten or fifteen minutes, frequently scheduled with little notice, and the window to request it is usually narrow — sometimes 24 hours from the notice. Missing that window doesn’t end appeal rights, but it does close the fastest door.

What a clinician can do on that call:

• Present clinical detail that isn’t in the submitted summary, especially observations from the last 24 to 48 hours.
• Address each criterion the reviewer names, in order, with dated chart evidence.
• Ask which specific criteria the reviewer considers unmet, and write the answer down verbatim.
• Ask the reviewer’s specialty and board certification.
• Propose an alternative the reviewer might accept — a shorter extension, a step-down with conditions.

What it can’t do: change a criteria set, add a benefit the plan doesn’t have, or bind anyone if the reviewer says no.

A peer-to-peer that fails still produces the most useful information in the entire sequence. You end it knowing exactly which two or three criteria are in dispute, which turns a vague appeal into a targeted one. Insist that whoever takes the call writes down what was said, including names and times.

Expedited and Urgent Determinations

Timelines differ sharply depending on whether a request is urgent, and the definition of urgent is broader than people assume: a delay that could seriously jeopardize life or health or the ability to regain maximum function, or that would subject the person to severe pain that can’t be adequately managed without the care. A treating clinician’s judgment that a claim is urgent is generally required to be treated as such.

Situation	General decision window (non-grandfathered group health plans)	What triggers it
Urgent pre-service request	As soon as possible, generally no later than 72 hours	Delay would seriously jeopardize health or maximum function
Non-urgent pre-service request	Generally within 15 days, with one 15-day extension possible	Standard prior authorization for scheduled care
Urgent concurrent care request to extend ongoing care	Generally within 24 hours, if requested a reasonable time before the authorization ends	An in-progress course of treatment approaching its end date
Post-service claim	Generally within 30 days	Care already delivered
Urgent internal appeal	Generally within 72 hours	An appeal of an urgent determination
Expedited external review	Generally as expeditiously as possible, often within 72 hours	Urgent care, and it can run at the same time as the internal appeal

Deadlines vary by plan type and program. Medicare Advantage and Medicaid managed care run on their own organization-determination and service-authorization timelines with their own expedited standards. CMS explains the appeals and external review framework for private coverage at CMS.gov, and its Medicare Advantage rules address prior authorization and continuity of authorized care separately.

Ask for expedited handling explicitly. It isn’t automatic, it can be requested by phone, and for urgent situations the internal process generally doesn’t have to be exhausted before an expedited external review is requested.

Authorization Denial vs. Claim Denial

Different documents, different timing, sometimes different consequences. People conflate them and then argue the wrong point.

	Authorization denial	Claim denial
When	Before or during care	After care, when the bill is processed
What it says	The service isn’t approved as medically necessary at that level, or isn’t covered	The submitted claim won’t be paid, in whole or in part
Where it shows up	A determination letter, often to both you and the provider	Usually first on an Explanation of Benefits (EOB)
Decision speed	72 hours urgent, 15 days standard pre-service, 24 hours urgent concurrent	Generally 30 days post-service
Common causes	Criteria not documented as met, wrong level of care requested, missing clinical detail	All of the above, plus coding errors, eligibility problems, missing authorization number
Practical effect	Care may not start, or continues at your financial risk	A bill arrives for care already received
Appeal path	Internal appeal, expedited if urgent, then external review	Same path, on post-service timelines

One trap deserves its own paragraph. An authorization is not a guarantee of payment. Most determination letters say so explicitly, in language noting that payment remains subject to eligibility on the date of service, plan terms, and benefit limits. So a service can be authorized and the claim still denied later — for a lapse in eligibility, an exhausted benefit, or a billing error. Keep the authorization number, the dates it covers, and the name of who issued it. When a claim is denied on a service that was authorized, that number is the first thing to put in writing.

Our companion piece on how to read a denial letter and appeal it covers the post-service side in more depth.

An Illustrative Composite: A Concurrent Review Cut

The following is a fictional composite written to show the sequence and typical timing. It does not describe any real person, plan, insurer, clinician, or facility, and nothing in it predicts any outcome.

Priya is 29, covered through her employer. After an emergency department visit on a Sunday, she’s admitted to a PHP starting Tuesday. Prior authorization for mental health treatment at that level is requested by the program on Monday and approved for ten days.

Day 1. Her partner calls the number on the card and asks two questions: what criteria set applies to PHP, and how often concurrent review will occur. He writes down the answers and the representative’s name and reference number.

Day 2. He sends a short written request for a copy of the medical necessity criteria applied. Email to the address given, plus a letter with tracking.

Day 8. The program submits a clinical update. The reviewer indicates that continued PHP is unlikely to be authorized past day 10 and that the record supports a step down to IOP.

Day 8, afternoon. The treating clinician requests a peer-to-peer within the 24-hour window. Priya’s partner asks for the written determination that same day, in writing, and asks the program’s utilization review staff for the exact language submitted.

Day 9. The peer-to-peer happens. The plan’s reviewer upholds. He names two criteria he considers unmet: documented inability to maintain safety with the current outpatient supports, and evidence of a failed trial at a lower intensity. The clinician writes both down word for word.

Day 9, same day. Priya requests an expedited internal appeal, since treatment is ongoing. She states in one sentence that a delay would jeopardize her ability to regain maximum function, and asks the plan to confirm receipt in writing.

Day 9-10. The appeal goes out: a clinician letter organized against the two named criteria, daily program notes from days 1 through 9, medication changes with dates, three administrations of a standardized measure, and documentation of a prior outpatient episode that ended in re-presentation to the emergency department six weeks earlier.

Day 11. The plan decides. In this illustration it partially overturns: four more PHP days, then IOP. Not the full extension requested.

Day 12. Priya files for expedited external review on the remaining days. An independent review organization assigns a psychiatrist with no financial relationship to the plan, and that decision will bind the plan.

What made the difference here wasn’t eloquence. It was that two criteria were named out loud on day 9, and the appeal answered exactly those two with dated evidence. Also worth noticing: a partial overturn is common, and people who stop after the internal appeal never find out what an independent reviewer would have said.

What to Have Ready Before You Need It

Most of this takes an hour and is far easier to do before a decision than during one.

• [ ] Your plan’s Summary Plan Description or Evidence of Coverage, complete, with the utilization management section flagged.
• [ ] A written list of which services require authorization under your plan, including any outpatient visit threshold.
• [ ] Whether the plan is self-funded or fully insured. Ask HR in writing; it determines who regulates it.
• [ ] Whether behavioral health is administered by a separate company, and that company’s contact and fax details.
• [ ] A written request for the medical necessity criteria that apply to the level of care being considered.
• [ ] The authorization number, the exact dates it covers, and who issued it.
• [ ] A written note of how often concurrent review will occur for this admission.
• [ ] A signed authorization letting a family member speak with the plan on your behalf, plus a designation of an authorized representative for appeals.
• [ ] A call log template: date, time, name, reference number, what was said.
• [ ] The name of the program’s utilization review contact and their direct line.
• [ ] A short written treatment history with dates: prior levels of care, outcomes, and any re-presentations.
• [ ] Your plan’s appeal address and fax, and the expedited appeal phone number.

One habit worth building from day one. After every phone call with the plan, send a short email summarizing what you were told and asking them to correct anything wrong. That converts a conversation into a document, and documents are what appeals are made of.

When Prior Authorization Becomes a Parity Question

Prior authorization is a non-quantitative treatment limitation under the federal parity law, which means it’s subject to comparison. Not banned. Compared.

The Mental Health Parity and Addiction Equity Act (MHPAEA) requires that the processes, strategies, evidentiary standards, and other factors a plan uses in applying a limit to behavioral health benefits be comparable to, and applied no more stringently than, those it uses for medical and surgical benefits in the same classification. Both as written and in operation.

Patterns that raise the question:

• Authorization required for every behavioral health admission while comparable medical admissions are reviewed after the fact or not at all.
• Concurrent review every two days on a psychiatric unit versus weekly or milestone-based review on a medical unit.
• A fail-first requirement at a lower level of care with no analogous requirement on the medical side.
• Behavioral health necessity judged against proprietary vendor guidelines while medical necessity is judged against generally accepted standards.
• Routine review of outpatient therapy visits beyond a threshold, where comparable outpatient medical visits face no such threshold.

Plans subject to the law must document a comparative analysis for each such limit and provide it on request to a regulator or to a participant affected by it. Requesting yours is a short letter naming the limit, the benefit classification, and your status as a participant. Send it to the plan administrator, separately from your appeal, and keep proof of the date. Our full walkthrough of what the parity law requires and doesn’t covers the mechanics.

The Department of Health and Human Services describes the federal parity framework and consumer options at HHS.gov.

Where to Get Free, Unbiased Help

• Employee Benefits Security Administration (EBSA) at the U.S. Department of Labor. Benefits advisors answer questions about employer plan authorizations and appeals at no cost.
• Your state Department of Insurance, for fully insured and individual market coverage. The complaint process is free, and many states run the external review program.
• State Consumer Assistance Programs, where they exist, help consumers file appeals directly.
• Your state Medicaid agency and the fair hearing process for Medicaid service authorization denials, which have their own rules, including continued benefits in some circumstances when a hearing is requested quickly enough.
• Protection and Advocacy agencies, federally funded, one in every state and territory.
• State Health Insurance Assistance Programs (SHIPs) for free Medicare counseling.
• SAMHSA’s National Helpline, 1-800-662-4357, free and confidential, for treatment referral and information.

For clinical background on what PHP, IOP, or residential care actually involve, our sister site covers the treatment side at lawyers.lyricalguy.com. Coverage, cost, and rights stay here.

Frequently Asked Questions

Does prior authorization for mental health treatment mean my plan will pay?

Not by itself. Authorization letters generally state that payment remains subject to eligibility on the date of service, plan terms, and benefit limits. Keep the authorization number and dates, because that’s the first thing to cite if a claim on an authorized service is later denied.

How long does a prior authorization decision take?

For non-grandfathered group health plans, urgent pre-service requests are generally decided within 72 hours and standard pre-service requests within 15 days, with one possible 15-day extension. Urgent requests to extend ongoing care are generally decided within 24 hours if made a reasonable time before the current authorization ends.

Can coverage really stop while I’m still in treatment?

Yes, through concurrent review. A reduction or termination of an approved ongoing course of treatment is itself an adverse benefit determination, and plans generally must give notice far enough in advance that an appeal can be requested and decided before the change takes effect.

What is a peer-to-peer review?

A direct conversation between your treating clinician and the plan’s physician reviewer, usually short and often available only within a narrow window after the notice. It sometimes resolves a dispute, and even when it doesn’t, it reveals which specific criteria the reviewer considers unmet.

Can I get a copy of the criteria used to decide my case?

For group health plans, yes. If a decision relied on an internal rule, guideline, protocol, or clinical criterion, a copy must be provided free of charge on request, along with the clinical explanation applied to your circumstances for medical necessity denials.

Does routine therapy need prior authorization?

In most commercial plans, no. Some plans require review after a set number of visits, and some Medicaid managed care and Medicare Advantage plans have their own rules. Check the utilization management section of your plan document rather than assuming.

Who requests the authorization, me or my provider?

Usually the provider or facility submits the clinical request, and their utilization review staff handle the updates during concurrent review. You still hold the appeal rights as the member, and you can ask to see exactly what was submitted on your behalf.

What if care is urgent and there’s no time to wait?

Ask for expedited handling explicitly, which can be done by phone. Emergency services follow different rules, and for urgent situations the internal appeal generally doesn’t have to be completed before an expedited external review is requested.

How is an authorization denial different from a claim denial?

An authorization denial happens before or during care and says the service isn’t approved. A claim denial happens after, when the bill is processed, and says payment won’t be made. Both are adverse benefit determinations with appeal rights, but they run on different timelines.

Can I be billed for days the plan didn’t authorize?

Possibly, depending on the facility’s agreement and your plan’s terms. Ask the program directly, in writing, what your financial exposure is for unauthorized days before making a decision about staying, and compare it against what self-pay care actually costs.

Does prior authorization apply to Medicare and Medicaid?

Original Medicare uses prior authorization sparingly, while Medicare Advantage plans use it more and follow their own organization-determination timelines. Medicaid managed care uses service authorization with state-specific rules, including fair hearing rights and, in some circumstances, continued benefits pending appeal.

Is heavy prior authorization on behavioral health a parity violation?

Not automatically. It becomes a parity question when the limit is applied more stringently to behavioral health than to comparable medical and surgical benefits in the same classification, either as written or in operation. The way to test it is to compare your plan’s own rules and request the comparative analysis.

Final Thoughts

Do one thing before anything goes wrong. Call the number on your card and ask which behavioral health services require authorization, then ask for the medical necessity criteria for the level of care in question in writing. Write down the date, the name, and the reference number.

Prior authorization for mental health treatment rewards people who show up already knowing the rules, and punishes waiting. If a determination does come, ask for it in writing the same day, request the peer-to-peer inside the window, and get the two or three disputed criteria named out loud. That’s the appeal, essentially. Everything after it is assembling dated evidence against those specific points.

This article is for general informational purposes only and does not constitute medical, legal, insurance, or financial advice. It is not a diagnosis, a treatment recommendation, or an evaluation of any individual claim. Mental health coverage rules, parity requirements, appeal rights, disability standards, and employment protections vary by plan, by state, and by individual circumstance, and they change over time. This site is independently operated. It is not a law firm, an insurance company or advisor, a healthcare provider, a government agency, or an advocacy organization, and it does not represent anyone. Reading this article creates no professional relationship of any kind. Always confirm current requirements with your plan documents, a licensed professional in your state, or the official government sources cited above before making any decision.

By the Editorial Team. Reviewed and updated on August 8, 2026.

This article is educational and independent. It is not medical, legal, or insurance advice, and it is not a diagnosis or a treatment recommendation. Coverage rules, benefit programs, and legal rights vary by state, by plan, and by individual circumstance. Confirm details with your plan, a licensed professional, or the official sources named in this article.

If you are in crisis or thinking about harming yourself, help is available right now, free and confidential. Call or text 988 to reach the 988 Suicide & Crisis Lifeline, or chat at 988lifeline.org. You can also text HOME to 741741 to reach the Crisis Text Line. For substance use or mental health treatment referrals, SAMHSA’s National Helpline is 1-800-662-4357. If someone is in immediate danger, call 911.

Start Here

Getting a mental health insurance claim denied usually arrives as a single page that manages to be both alarming and vague. It says the requested services do not meet criteria for medical necessity. It names criteria you have never seen. It gives you a deadline buried in the fourth paragraph, and it tells you that you may submit additional information without saying which information would actually change the answer.

Most people read it twice, feel sick, and put it in a drawer.

That is the worst possible move, and not for the reason you would expect. The problem is not that appeals are hopeless. Plans overturn a meaningful share of their own decisions at the internal appeal stage, particularly when new clinical documentation arrives with the appeal. The problem is that the clock starts on the date of the letter, and the drawer does not stop it.

A mental health insurance claim denied at the level-of-care stage is also one of the more appealable decisions in American health coverage, because it rests on clinical judgment that a second clinician can weigh differently.

This article covers what a denial letter is required to contain, why the type of plan you have changes your rights significantly, how internal appeals and external review actually work, and what kind of evidence tends to move a decision. Nobody can tell you your appeal will succeed. What can be said honestly is that a well-documented appeal is a different animal from a letter that says the treatment was necessary, and the difference is mostly work you can do yourself.

What “Mental Health Insurance Claim Denied” Actually Means on Paper

The legal term is adverse benefit determination. It covers any denial, reduction, or termination of a benefit, and it includes a rescission of coverage. Use that phrase in your correspondence. It tells whoever reads your appeal that you are working from the same rulebook they are.

Under federal claims regulations, an adverse benefit determination notice has to give you certain things. Not as a courtesy. As a requirement.

• The specific reason or reasons for the denial, in language you can understand.
• Reference to the specific plan provisions on which the determination is based.
• A description of any additional material or information needed to perfect the claim, and why it is needed.
• A description of the plan’s appeal procedures and the applicable time limits.
• If the decision relied on an internal rule, guideline, protocol, or clinical criterion, either a copy of it or a statement that a copy is available free of charge on request.
• If the denial is based on medical necessity or experimental treatment, an explanation of the scientific or clinical judgment applied to your circumstances, free of charge on request.
• For group health plans, a statement of your right to bring a civil action after exhausting the appeal process.

Read that list again, because the fifth and sixth items are the ones almost nobody exercises. You can ask for the criteria. You can ask for the reasoning. In writing, and at no cost.

The U.S. Department of Labor explains these obligations for employer-sponsored plans in its consumer guide, Filing a Claim for Your Health Benefits.

Three documents people confuse

Document	What it is	Does it start an appeal clock?
Explanation of Benefits (EOB)	A statement of how a claim was processed. Not a bill. Often the first place a denial appears, shown as a reason code.	Sometimes. If it communicates a denial, it can function as the notice. Check the date.
Adverse benefit determination letter	The formal denial notice with reasons, criteria references, and appeal instructions.	Yes. This is the document your deadline runs from.
Provider bill or statement	What the clinic or facility says you owe. Generated by the provider, not the plan.	No. But it is how most people find out something went wrong.

The Denial Reasons You Will Actually See

Nearly every mental health insurance claim denied in the United States falls into a small number of categories. Identifying which one you are facing determines everything you do next, because the evidence that fixes one does nothing for another.

Stated reason	What it usually means	What tends to address it
Not medically necessary	The documentation did not match the plan’s written criteria for that level of care	The plan’s actual criteria, plus a clinician letter answering each criterion with dated chart evidence
Level of care not appropriate / can be treated at a lower level	The plan agrees treatment is needed, but not at that intensity	Functional evidence and a documented history of what failed at the lower level
No prior authorization obtained	An administrative miss, sometimes by the facility rather than the patient	Proof of the request, a retro-authorization request, or an urgent-admission exception
Out-of-network provider	The clinician or facility has no contract with the plan	Out-of-network benefits, a network adequacy exception, or a documented lack of available in-network providers
Missing or insufficient documentation	Records were not submitted, arrived late, or were illegible	Complete records with dates, plus confirmation of receipt
Not a covered benefit / plan exclusion	The plan document genuinely excludes the service	Verify the exclusion language. If it applies only to behavioral health, that raises a parity question
Coding or billing error	Wrong procedure code, wrong place of service, wrong provider identifier	A corrected claim from the provider. Not an appeal at all

That last row saves people weeks. A surprising share of denials are billing mechanics, not coverage decisions, and the fix is a phone call to the provider’s billing office asking them to resubmit with corrected information. Check that before you write anything.

The parity angle worth checking

If the restriction that caused your denial applies more strictly to behavioral health than to comparable medical or surgical care, that may violate the Mental Health Parity and Addiction Equity Act (MHPAEA). Examples of the pattern: prior authorization required for every behavioral health admission but not for comparable medical admissions, or concurrent review conducted every three days for psychiatric care and every seven for medical care. Plans subject to the law must be able to produce a comparative analysis of any nonquantitative treatment limitation on request. Asking for it in an appeal changes the conversation, because it is a compliance question rather than a clinical one.

ERISA or Not: The Question That Changes Your Rights

Before you write a word, find out what kind of plan you have. This single fact determines your deadlines, who reviews your appeal, whether a state regulator can help you, and what happens if you eventually go to court.

	ERISA plan (most private employer coverage)	Non-ERISA (marketplace, individual, Medicaid, Medicare, government and most church plans)
Primary regulator	U.S. Department of Labor	State insurance department, state Medicaid agency, or CMS depending on program
Internal appeal	Generally one or two mandatory levels, per plan document	Usually one level, then state external review
External review	Federal external review process or a state process that meets federal standards	State external review program, or the federal process for plans without one
State insurance complaint	Generally unavailable for self-funded plans	Available and often effective
If you sue	Federal court under ERISA. In most cases the judge reviews the administrative record you built during the appeal, and no new evidence is added	State law claims may be available, with broader remedies in some states

Sit with that last row for a second, because it is the most consequential sentence in this article.

In an ERISA case, the record you create during the internal appeal is usually the entire record a court will ever see. Evidence you did not submit during the appeal generally cannot be added later. That is why experienced advocates treat the internal appeal as the main event rather than a formality. Everything goes in. The clinician letter, the full chart, the standardized measures, the call logs, the plan’s own criteria and your response to each element of them.

How do you find out which you have? Ask your employer’s HR or benefits contact whether the plan is self-funded or fully insured, or look at the Summary Plan Description. ERISA plans include a statement of ERISA rights, usually near the back. Government employee plans, church plans, individual market policies, Medicaid, and Medicare are not ERISA plans.

The Appeal Sequence, Step by Step

Here is the ordinary path, in order. Deadlines below are the federal minimum standards for non-grandfathered group health plans and marketplace coverage. Your plan document may be more generous. It cannot be less.

1. Day 0 — the denial letter is dated. Your clock starts here, not on the day you opened the envelope.
2. Within days 1-7 — request the file. In writing, ask for the plan’s written medical necessity criteria applied to your claim, the reviewer’s credentials and specialty, and a complete copy of the claim file including all documents the plan relied on. Federal rules entitle claimants under group health plans to these free of charge.
3. Days 7-30 — build the appeal. Get a clinician narrative that responds to the plan’s criteria element by element. Collect chart notes, discharge summaries, medication history, standardized scores over time, and anything documenting function.
4. Within 180 days — file the internal appeal. You generally have at least 180 days from the date of the adverse benefit determination to appeal a group health plan denial. Send it in a way that produces proof of delivery.
5. Plan decision. Pre-service appeals are generally decided within 30 days. Post-service appeals within 60 days. Urgent care appeals within 72 hours.
6. If upheld — request external review. You generally have 4 months from the final internal denial to request an independent external review. An independent review organization (IRO) assigns physicians with no financial relationship to the plan.
7. IRO decision. Standard external review decisions generally arrive within 45 days. Expedited external review is much faster, often 72 hours, and can run at the same time as an expedited internal appeal when care is urgent.
8. The IRO decision binds the plan. If the IRO overturns the denial, the plan must provide coverage. This is the part people do not realize, and it is the strongest reason not to stop after one internal appeal.

The Centers for Medicare & Medicaid Services explains the external review process and how to find your state’s program at CMS.gov’s appeals and external review page. HealthCare.gov also walks consumers through both stages at HealthCare.gov.

When care is happening right now

Ask for an expedited appeal if a delay would seriously jeopardize health or the ability to regain maximum function, or if the claim involves ongoing or urgent treatment. You can request it by phone, and the plan cannot require you to complete an internal appeal before an expedited external review in urgent situations. Two other things matter here. When a plan terminates coverage for care already in progress, that concurrent care decision generally requires advance notice and, in many cases, continued coverage while the appeal is pending. And your treating clinician can ask for a peer-to-peer review, a direct conversation with the plan’s physician reviewer, which sometimes resolves the matter before a formal appeal is decided.

What Actually Moves an Appeal

Sympathy does not move appeals. Specificity does. That is true whether the mental health insurance claim denied was for six therapy sessions or for a month of residential care.

The single most effective appeal document is a clinician letter written against the plan’s own criteria. Get the criteria first. Then have the treating clinician address each element in order, quoting dated chart evidence for each. A letter that says “the patient requires this level of care in my professional judgment” is easy for a reviewer to set aside. A letter that says “criterion 3.2 requires documented failure at a less intensive level within the prior 90 days; the patient completed 14 IOP sessions between March 3 and April 11 with worsening scores on a standardized measure administered on March 3, March 24, and April 10” is not.

Evidence that tends to carry weight:

• Functional detail. Not “severe symptoms” but what stopped working. Missed shifts with dates. Weight change. Inability to manage medication or meals. Loss of housing or transportation.
• Chronology. A dated timeline of treatment attempts, from first outpatient contact to the current request, showing the step-up logic.
• Standardized measures over time. Repeated scores from validated instruments give a reviewer something to compare against a criterion.
• Records from every treating clinician, not only the one requesting the service. Primary care notes, emergency department records, and pharmacy history all add texture.
• The plan’s own language. Quote the plan document provision the denial cited and explain, in one paragraph, why your facts satisfy it.

What tends not to help: emotional narrative without dates, letters from people who are not treating clinicians, printouts of general articles about the condition, and long complaints about the plan’s conduct. Save the conduct complaint for the regulator. Keep the appeal clinical.

Formatting that gets read

1. One page cover letter. Claim number, member ID, dates of service, the specific decision you want reversed, and a numbered list of what is enclosed.
2. The clinician letter next, addressing the criteria in order.
3. Records behind that, tabbed or bookmarked, in chronological order.
4. A short closing paragraph requesting the appeal decision in writing with the basis stated.

Send it with tracking. Keep a complete copy of everything you sent, exactly as sent.

A Worked Example (Illustrative Composite, Not a Real Person)

The following is a fictional composite created to show the sequence. It does not describe any real individual, plan, insurer, or facility.

Marcus is 41 and covered by his employer’s self-funded plan, which makes it an ERISA plan. After an emergency department visit in May, he is admitted to a residential program. The plan authorizes nine days. On day nine, concurrent review finds he no longer meets residential criteria and terminates coverage going forward. The program’s clinical team believes he needs three more weeks.

Day 9. The facility receives the verbal determination. Marcus’s spouse asks for the written adverse benefit determination the same day and asks, in writing, for the plan’s residential level-of-care criteria and the reviewer’s specialty.

Day 10. The treating psychiatrist requests a peer-to-peer review. The plan’s reviewer, a physician, upholds the decision. That is not the end of anything, but it is useful, because the psychiatrist now knows exactly which two criteria the reviewer considered unmet.

Day 11. Marcus requests an expedited internal appeal, since treatment is ongoing.

Days 11-13. The appeal package goes out: a two-page psychiatrist letter organized against the criteria, daily nursing notes from days 1-9, medication changes with dates, three administrations of a standardized measure, records of two prior outpatient episodes that ended in relapse, and a discharge plan naming a specific step-down intensity and the conditions for moving to it.

Day 14. The plan decides the expedited appeal. In this illustration it partially overturns, authorizing five more residential days followed by PHP. Not the three weeks requested.

Day 16. Marcus files for expedited external review on the remaining days. The IRO assigns a psychiatrist with no relationship to the plan.

Day 19. The IRO issues a decision. Whatever it says, it binds the plan.

Two things in this composite are worth pulling out. First, the peer-to-peer call that “failed” produced the most valuable information in the whole sequence, namely which criteria were at issue. Second, a partial overturn is a common and often overlooked outcome. Appeals are not always all-or-nothing.

Your Appeal Checklist

Print this or copy it into a document. Check items off with dates.

• [ ] Write the date of the denial letter at the top of your file. Calculate and note the 180-day deadline.
• [ ] Identify the exact denial reason and match it to the table above.
• [ ] Confirm with the provider’s billing office that this is not a coding or claim-submission error.
• [ ] Determine whether the plan is ERISA or non-ERISA.
• [ ] Request in writing: the medical necessity criteria applied, the reviewer’s credentials and specialty, and the complete claim file.
• [ ] Request the Summary Plan Description or Evidence of Coverage if you do not have it.
• [ ] Ask the treating clinician for a letter written against the criteria, element by element.
• [ ] Gather chart notes, discharge summaries, medication history, standardized measures, and dated functional evidence.
• [ ] Decide whether the appeal qualifies as urgent and request expedited handling if it does.
• [ ] Assemble the package with a numbered cover letter.
• [ ] Send with delivery tracking and keep a full copy.
• [ ] Calendar the plan’s decision deadline: 72 hours urgent, 30 days pre-service, 60 days post-service.
• [ ] If upheld, file for external review within 4 months of the final internal denial.
• [ ] Log every phone call: date, representative’s name, reference number, what was said.

One more habit worth building. After every call, send a short email or letter to the plan summarizing what you were told and asking them to correct you if it is wrong. That converts a phone conversation into a document.

Where to Get Free, Unbiased Help

None of these charge you, and none of them are selling a service.

• Employee Benefits Security Administration (EBSA), part of the U.S. Department of Labor. Benefits advisors answer questions about employer plan appeals and can sometimes contact a plan on a participant’s behalf.
• Your state Department of Insurance. For fully insured and individual market plans, the complaint process is free and often produces a written response from the insurer within weeks. Many states also run the external review program.
• State Consumer Assistance Programs, where they exist, help consumers file appeals directly.
• Protection and Advocacy agencies. Every state and territory has one, funded federally, working on rights issues for people with mental health conditions.
• Legal aid organizations and law school clinics, which sometimes take benefits cases at no cost based on income.
• SAMHSA’s National Helpline, 1-800-662-4357, for treatment referral and information, free and confidential, 24 hours a day.
• State Health Insurance Assistance Programs (SHIPs) for Medicare appeals counseling, free in every state.

Medicare and Medicaid denials follow their own appeal systems with their own deadlines and forms, which is why the generic advice above does not transfer cleanly. Medicare beneficiaries should start with the appeal instructions on the Medicare Summary Notice. Medicaid enrollees have a right to a state fair hearing, and in many states can request that benefits continue during the appeal if the request is filed quickly enough after the notice.

Frequently Asked Questions

My mental health insurance claim was denied. How long do I have to appeal?

For most group health plans and marketplace coverage, at least 180 days from the date of the adverse benefit determination for the internal appeal, then 4 months from the final internal denial to request external review. Your plan document may allow more time. Medicare and Medicaid run on different timelines stated in their own notices.

What is an adverse benefit determination?

The formal term for a denial, reduction, termination, or failure to pay a benefit, including a rescission of coverage. It is the trigger for your appeal rights.

Can I get the criteria the plan used to deny my care?

Yes. If a decision relied on an internal rule, guideline, protocol, or clinical criterion, group health plans must provide a copy free of charge on request, along with the scientific or clinical explanation applied to your circumstances for medical necessity denials.

Should my doctor appeal or should I?

Both roles matter and they are not interchangeable. The clinician supplies the clinical narrative and can request a peer-to-peer review. You control the appeal as the claimant, hold the deadline, and can authorize the provider to act on your behalf in writing if you prefer they file it.

Does an external review actually work?

Independent reviewers overturn plan decisions in a meaningful minority of cases, and behavioral health level-of-care disputes are among the categories that get overturned. No one can predict any individual outcome. What is certain is that the IRO’s decision binds the plan, so the process is not advisory.

Is an expedited appeal available for mental health care?

Yes, when a delay would seriously jeopardize health or the ability to regain maximum function, or when the claim involves urgent or ongoing care. Urgent internal appeals are generally decided within 72 hours, and expedited external review can run concurrently.

What if the denial says my provider is out of network?

Check three things. Whether your plan has out-of-network benefits at all, whether the provider was in network on the date of service, and whether you can document that no in-network provider was available within a reasonable distance and time. That third one supports a request for a network adequacy exception or single case agreement.

Can I complain to my state Department of Insurance?

If your plan is fully insured or purchased on the individual market, yes, and it is free. If your employer’s plan is self-funded, state regulators generally lack authority over it, and the Department of Labor is the right destination instead.

What if the plan misses its own decision deadline?

Under federal rules, a plan’s failure to follow claims procedures can allow a claimant to treat the internal process as exhausted and move directly to external review or, for group health plans, to court. Document the dates precisely if this happens.

Will appealing hurt my relationship with the plan or my employer?

Appealing is a benefit right, not a complaint against your employer, and your employer does not receive your clinical records. Plans process appeals as routine administrative work.

Do I need a lawyer to appeal?

Many appeals are filed by patients and families without one. What changes the calculus is an ERISA plan, a large dollar amount, or a case heading toward litigation, because the administrative record you build during the appeal is generally the record a federal court will review. This article does not give legal advice, and whether to seek counsel is an individual decision.

My mental health insurance claim was denied for a residential stay that already happened. Is it too late?

No. Post-service denials follow the same appeal path, with the plan generally required to decide within 60 days. Gather the full record from the facility, including daily notes, before you file.

Final Thoughts

Do one thing today. Find the denial letter, write the date it was issued at the top of a fresh page, and send a written request for the medical necessity criteria and the complete claim file. A mental health insurance claim denied for medical necessity can only really be answered with the plan’s own criteria in front of you. That request costs you nothing, it does not commit you to anything, and it turns an appeal you would be guessing at into one you can actually write.

Then take your time with the rest. You have months, not days, in most cases. Use them.

This article is for general informational purposes only and does not constitute medical, legal, insurance, or financial advice. It is not a diagnosis, a treatment recommendation, or an evaluation of any individual claim. Mental health coverage rules, parity requirements, appeal rights, disability standards, and employment protections vary by plan, by state, and by individual circumstance, and they change over time. This site is independently operated. It is not a law firm, an insurance company or advisor, a healthcare provider, a government agency, or an advocacy organization, and it does not represent anyone. Reading this article creates no professional relationship of any kind. Always confirm current requirements with your plan documents, a licensed professional in your state, or the official government sources cited above before making any decision.