Cigna Denied MRI: Why It Happens and How to Appeal

Cigna is one of the most frequent issuers of MRI Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization denials in the United States, in part because it routes most outpatient imaging authorizations through eviCore healthcare — a specialty benefit management company that applies its own clinical criteria on top of Cigna's own coverage policies. If Cigna or eviCore denied your MRI, here's how to understand and challenge that decision.

Why Cigna Denies MRI Claims

Cigna's imaging denials are typically driven by:

• eviCore prior authorization denial: Cigna uses eviCore healthcare (now merged with Evernorth) to manage outpatient imaging authorizations. eviCore applies evidence-based clinical criteria to MRI requests. If your provider doesn't submit sufficient clinical documentation, eviCore will deny the authorization, and Cigna will follow with a claim denial.
• Lack of conservative care documentation: For musculoskeletal MRIs, Cigna and eviCore require documentation that conservative care (physical therapy, medications, rest) has been tried for a specified period before imaging is warranted.
• No prior authorization obtained: If your provider ordered an MRI without going through eviCore's authorization process first, the claim will be denied automatically.
• Clinical criteria not met: eviCore uses the InterQual and its own proprietary clinical decision support tools to evaluate imaging requests. If your physician's documentation does not satisfy the specific criteria, the request fails.
• Out-of-network imaging center: MRI performed at an out-of-network facility may be denied or reimbursed at a much lower rate.
• Duplicate imaging: Cigna may deny a repeat MRI if a comparable study was recently performed.

Cigna / eviCore Prior Authorization for Imaging

Your provider must obtain imaging authorization from eviCore before scheduling your MRI. eviCore can be reached at 1-888-693-3211. Alternatively, providers can use eviCore's online portal at evicore.com. If eviCore denies the authorization, the denial letter will specify the clinical criteria not met.

How to Appeal a Cigna MRI Denial

Step 1 — Request a Peer-to-Peer Review with eviCore Your physician can call eviCore's peer-to-peer line and speak directly with the reviewing physician. A significant percentage of eviCore denials are reversed at this stage when the full clinical picture is shared.

Step 2 — File a Formal Internal Appeal Within 180 Days

• Online: myCigna.com
• Mail: Cigna Healthcare, P.O. Box 188011, Chattanooga, TN 37422
• Phone: 1-800-88CIGNA (1-800-882-4462)

Note: Even though eviCore made the initial determination, your formal appeal goes through Cigna's standard appeal process.

Step 3 — Build Your MRI Appeal Package

• Physician's letter of medical necessity addressing eviCore's and Cigna's specific criteria
• Clinical notes documenting symptoms, duration, neurological findings, and failed conservative treatments
• ACR Appropriateness Criteria (from the American College of Radiology) for your specific clinical scenario
• Prior imaging results and why further imaging is clinically necessary

Step 4 — Expedited Review for Urgent Clinical Situations If the MRI is clinically urgent (e.g., suspected spinal cord compression, intracranial mass), request an expedited appeal. Cigna must respond within 72 hours.

Step 5 — External Independent Review: Complete Guide" class="auto-link">External Review and Escalation

• ERISA plans: DOL EBSA — 1-866-444-3272
• State-regulated plans: Your state insurance commissioner
  • California: DMHC — 1-888-466-2219 (California has an Independent Medical Review process with broad availability)
  • Connecticut: CID — 1-800-203-3447
  • Texas: TDI — 1-800-252-3439

Challenging eviCore's Criteria

eviCore's clinical criteria are not always aligned with mainstream specialty society guidelines. In your appeal, explicitly compare eviCore's criteria to the relevant specialty society's guidelines (e.g., AAOS, AAN, ACC, ASNR) and highlight any discrepancies.

Fight Back With ClaimBack

Cigna and eviCore MRI denials are reversible — particularly when you can document the clinical necessity with the right evidence. ClaimBack helps you build a targeted appeal letter in minutes.

Start your free appeal at ClaimBack

Related Reading

• What Is Medical Necessity?
• How to Write an Insurance Appeal Letter
• Common Reasons Insurance Claims Are Denied