Cigna Denied Your Mental Health Claim — Here's How to Fight Back

If Cigna or Evernorth just denied your mental health claim, you are not alone. Cigna is one of the most frequently cited insurers for mental health claim denials, and their behavioral health arm, Evernorth, has faced sustained criticism for how it reviews psychiatric and therapy claims. But a denial is not the end. You have the legal right to appeal, and with the right approach, you have a strong chance of getting that decision reversed.

Here is exactly how to fight a Cigna mental health denial.

Why Cigna Denies Mental Health Claims

Understanding why Cigna denied your claim is the first step toward building a winning appeal. These are the most common reasons:

"Not Medically Necessary"

This is Cigna's most frequent denial reason for mental health treatment. Cigna uses its own Medical Necessity Criteria and Clinical Coverage Policies to evaluate whether your treatment meets their internal standards. If your provider's documentation does not align with Cigna's specific criteria, the claim gets denied — even if your treating clinician strongly disagrees.

Algorithm-Driven and Automated Reviews

Cigna has faced serious scrutiny for using automated systems to deny claims without individualized physician review. A 2023 ProPublica investigation found that a Cigna medical director was signing off on tens of thousands of claim denials using an automated system called PXDX, spending an average of just 1.2 seconds per case. This means your claim may have been denied without any doctor actually reviewing your medical records.

Evernorth Behavioral Health Gatekeeping

Cigna routes most mental health claims through Evernorth Behavioral Health (formerly Cigna Behavioral Health). Evernorth applies its own utilization review protocols, often requiring frequent re-authorizations for ongoing therapy, intensive outpatient programs (IOP), and psychiatric medication management. These reviews can result in sudden termination of previously approved care.

Prior Authorization and Step Therapy

Cigna frequently requires prior authorization for mental health services, particularly for higher levels of care like residential treatment, partial hospitalization, and IOP. They also impose step therapy requirements for psychiatric medications, requiring you to try and fail on cheaper drugs before they will cover what your psychiatrist actually prescribed.

Frequency and Visit Limits

Some Cigna plans still impose limits on the number of therapy sessions covered per year, or restrict coverage after a certain number of visits without re-authorization. If your denial letter references benefit limits or session caps, this may be a parity violation under federal law.

Cigna's Appeal Process: What You Need to Know

Cigna provides a two-level internal appeal process. Knowing the mechanics gives you an advantage.

Level 1: Standard Internal Appeal

You must file your first appeal within 180 days of receiving the denial notice. You can submit through:

• myCigna.com — log in, go to Claims, find the denied claim, and select "Appeal"
• Mail — send your appeal letter and supporting documents to the address listed on your denial notice (typically Cigna's National Appeals Unit)
• Fax — the fax number is also on your denial letter

Cigna must respond within 30 days for post-service claims and 15 days for pre-service claims. For urgent appeals — where a delay could seriously jeopardize your health — Cigna must respond within 72 hours. If you are currently in treatment that is being terminated, always request an urgent/expedited appeal.

Level 2: Second Internal Appeal

If your first appeal is denied, Cigna allows a second-level appeal. This review must be conducted by a different reviewer than the one who handled your first appeal. You have 60 days from the Level 1 denial to file Level 2.

External Review

If both internal appeals fail, you have the right to request an independent external review through your state's insurance department. An external reviewer — not employed by Cigna — will evaluate the case. External reviews overturn insurer denials in a significant percentage of cases, particularly for mental health claims. File your external review request within 4 months of the final internal denial.

Use Federal Parity Law Against Cigna

The Mental Health Parity and Addiction Equity Act (MHPAEA) is one of your most powerful tools when appealing a Cigna mental health denial. This federal law requires insurers to cover mental health and substance use treatment on equal terms with medical and surgical benefits.

Cigna's History of Parity Violations

Cigna has a well-documented track record of parity problems:

• Wit v. United Behavioral Health (2019-2023): While this landmark case targeted UBH specifically, it established critical precedent that insurers cannot use internal guidelines that are more restrictive than generally accepted standards of care. The same logic applies to Cigna's proprietary criteria.
• State enforcement actions: Multiple state attorneys general and insurance commissioners have investigated Cigna for applying more restrictive utilization review to behavioral health claims than to comparable medical/surgical claims.
• The PXDX automated denial system: Cigna's use of automated batch denials raises serious parity concerns. If Cigna reviews orthopedic surgery claims with individualized physician review but processes mental health claims through an algorithm, that is a textbook non-quantitative treatment limitation (NQTL) violation under MHPAEA.
• Class action litigation: Cigna has faced class action lawsuits alleging systematic underpayment and denial of mental health claims, with plaintiffs arguing that Cigna's behavioral health review processes are inherently more restrictive than those applied to physical health claims.

How to Make the Parity Argument

In your appeal letter, you can argue:

• "Cigna applies stricter medical necessity criteria to mental health claims than to comparable medical/surgical claims." Ask Cigna to provide their medical necessity criteria for a comparable medical condition and compare the stringency.
• "Cigna imposes more frequent re-authorization requirements for behavioral health treatment than for analogous medical treatment." If you need re-authorization every 10 therapy sessions but a physical therapy patient does not, that is a parity violation.
• Request a comparative analysis. Under MHPAEA's 2024 final rules, insurers must be able to demonstrate that their NQTLs are applied no more stringently to mental health benefits. You have the right to request this documentation from Cigna.

What Evidence to Include in Your Appeal

A successful appeal is built on evidence, not emotion. Here is what to attach:

Provider Support Letter

Ask your treating therapist, psychiatrist, or physician to write a detailed clinical letter explaining:

• Your DSM-5 diagnosis with diagnostic code
• Your current symptom severity and functional impairment
• Why the specific treatment denied is medically necessary
• What will happen if treatment is discontinued or not provided (risk of deterioration, hospitalization, harm)
• Why alternative treatments Cigna may suggest are inappropriate or have already been tried

Clinical Guidelines

Reference authoritative treatment guidelines that support your care:

• American Psychiatric Association (APA) Practice Guidelines
• American Academy of Child and Adolescent Psychiatry (AACAP) guidelines for minors
• SAMHSA Treatment Improvement Protocols
• American Society of Addiction Medicine (ASAM) criteria for substance use treatment

These guidelines carry significant weight because they represent the generally accepted standard of care — which is the legal benchmark under MHPAEA.

Peer-Reviewed Research

Include PubMed studies demonstrating the efficacy of your specific treatment for your specific diagnosis. For example, if Cigna denied your IOP claim, cite studies showing IOP effectiveness for your condition compared to less intensive alternatives. Finding and properly citing this research is time-consuming but critical. Tools like Overturn can automate this process, searching PubMed for relevant studies and incorporating them directly into your appeal letter.

DSM-5 Documentation

Make sure your clinical records include thorough DSM-5 diagnostic documentation with specific criteria met, severity specifiers, and functional impact ratings. Vague documentation is one of the most common reasons appeals fail.

Cigna-Specific Tips That Give You an Edge

Request Cigna's Clinical Coverage Policy

Before writing your appeal, call Cigna and request the specific Clinical Coverage Policy they used to deny your claim. Cigna is required to provide this. Once you have it, you can argue point-by-point why your treatment meets their own criteria — or why their criteria are more restrictive than generally accepted standards of care.

Reference Cigna's Medical Necessity Criteria

Cigna publishes many of its Coverage Policy documents on their website. Search for the policy that applies to your treatment. If your provider's documentation meets the criteria listed and your claim was still denied, cite the specific policy sections in your appeal.

Request the Reviewer's Credentials

Cigna must have your claim reviewed by a clinician with appropriate expertise. If a general practitioner denied a psychiatric claim, or a non-specialist reviewed a complex case, note this in your appeal. Under federal regulations, the reviewer must have relevant clinical expertise for the type of treatment at issue.

Escalate to Your State Insurance Commissioner

If Cigna's internal appeals fail — or if you believe they are violating parity law — file a complaint with your state's Department of Insurance. State regulators have enforcement authority over Cigna and can investigate systemic issues. Some states, including California, New York, and Illinois, have been particularly aggressive in enforcing mental health parity.

You can also file a complaint with the U.S. Department of Labor (for employer-sponsored plans) or HHS (for ACA marketplace plans) if you believe Cigna is violating MHPAEA.

Document Everything

Keep a log of every phone call with Cigna, including the date, time, representative name, and reference number. Cigna's customer service can be difficult to navigate, and having a paper trail protects you if they miss deadlines or provide conflicting information.

You Do Not Have to Do This Alone

Appealing a Cigna denial is absolutely worth doing — the data shows that a significant percentage of appeals succeed, especially when backed by clinical evidence and parity arguments. But the process is deliberately complex.

Overturn was built to level the playing field. Upload your Cigna denial letter, get a free case analysis, and receive a professionally structured appeal letter that cites PubMed evidence, MHPAEA protections, and Cigna's own coverage policies.

Cigna counts on you giving up. Don't.