How to appeal a Cigna surgery denied as 'not medically necessary' denial

The framework that applies to your appeal

Federal law gives you the right to a full and fair internal appeal, then an external review by an independent third party.

Cigna-specific note: Sold its Medicaid Advantage book to HCSC in 2023. Express Scripts (PBM) is Cigna-owned. Frequent class-action litigation around mental health parity.

What Cigna's policy requires for surgery denied as 'not medically necessary'

Cited policy: Cigna coverage policy - Lumbar Fusion for Spinal Instability and Degenerative Disc Conditions

Detailed criteria for spondylolisthesis grade, instability mm thresholds (>=4mm translation or >=10° angulation), failed conservative care.

How Cigna denies surgery denied as 'not medically necessary' — and how to counter it

Where Cigna pushes back: 1) Fusion criteria per CCP 0051 not met - instability <4mm; 2) GAS denied citing CCP 0119 cosmetic policy; 3) Revision bariatric 'inadequate weight loss' excluded.

Counter-arguments that hold up: Provide flexion-extension imaging with measurements. NASS Coverage Recommendations criteria. Cite Cigna's own GAS policy as primary, not cosmetic policy. Document anatomical complications for revision (stenosis, GERD, dumping).

What Cigna typically denies for surgery denied as 'not medically necessary'

Across Cigna's commercial and Medicare books, denials cluster around a small number of patterns. For surgery denied as 'not medically necessary', expect:

• Mental health parity violations
• Step therapy
• Specialty drug prior auth
• OON balance billing disputes

Treatments most often denied in this category

These are the surgery denied as 'not medically necessary' treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Bariatric surgery
• Lumbar fusion
• Cervical fusion (ACDF)
• GAS — top
• GAS — bottom
• FFS / voice

How to submit the appeal to Cigna

1. Read the denial letter — note the exact denial reason code and the appeal deadline (180 days from the date on the letter).
2. Gather supporting documentation: physician letter of medical necessity, relevant clinical notes, peer-reviewed citations supporting the treatment for your indication, and the policy or coverage document Cigna cited in the denial.
3. File the appeal through Cigna's portal (members: https://my.cigna.com ; providers: https://cignaforhcp.cigna.com). Standard decision returns within 30 days; expedited urgent appeals return within 72 hours.
4. If denied again, request external review by an independent reviewer within 4 months of the final internal denial. In CT, the state insurance department coordinates external review for fully-insured plans; ERISA self-funded plans use a federal external review through DOL/EBSA.

Clinician or prior-auth team handling this on the practice side? See Cigna's prior-authorization criteria by drug: Cigna PA criteria on ApprovalHelp.