How to appeal an Aetna 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.

Aetna-specific note: Owned by CVS Health since 2018. CVS Caremark is the PBM. Aetna ASA administers self-funded ERISA plans. Meritain Health is Aetna's TPA brand.

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

Cited policy: Aetna Clinical Policy Bulletin - Gender Affirming Surgery

Persistent dysphoria, age 18+ (though SOC8 allows younger), 12-month HRT for genital surgery, one or two referral letters depending on procedure.

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

Where Aetna pushes back: 1) FFS denied as cosmetic per CPB 0031; 2) Voice surgery as cosmetic; 3) Letters do not meet requirements.

Counter-arguments that hold up: WPATH SOC8 explicitly classifies FFS and voice as medically necessary for many patients. ACA §1557 + state law where applicable. Cite Kadel v. Folwell, Fain v. Crouch federal rulings finding categorical exclusions discriminatory. CPB 0615 itself covers many GAS procedures - quote within Aetna's own policy.

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

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

• UM-2575 medical necessity denials
• Prior auth absent
• Step therapy on specialty drugs
• Out-of-network ER reduction

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 Aetna

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 Aetna cited in the denial.
3. File the appeal through Aetna's portal (members: https://www.aetna.com ; providers: https://www.aetnaprovider.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 Aetna's prior-authorization criteria by drug: Aetna PA criteria on ApprovalHelp.