How to appeal an Aetna neurosurgery — discectomy, laminectomy, craniotomy, shunt 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 neurosurgery — discectomy, laminectomy, craniotomy, shunt

Cited policy: Aetna Clinical Policy Bulletin Lumbar Spinal Fusion

Spondylolisthesis grade I-II OR documented instability (>=4mm translation OR >=10° angulation on flexion-extension); >=6 mo conservative care; no smoking <6 wk pre-op (per most plans).

How Aetna denies neurosurgery — discectomy, laminectomy, craniotomy, shunt — and how to counter it

Where Aetna pushes back: 1) Instability not documented mm/degrees; 2) Conservative care insufficient; 3) Multi-level deemed excessive; 4) Smoking not addressed.

Counter-arguments that hold up: Provide flexion-extension X-rays with translation in mm + angulation in degrees. NASS Coverage Recommendations Lumbar Fusion. SPORT degenerative spondylolisthesis (Weinstein NEJM 2007) supports fusion. Document smoking cessation 6+ wk pre-op.

What Aetna typically denies for neurosurgery — discectomy, laminectomy, craniotomy, shunt

Across Aetna's commercial and Medicare books, denials cluster around a small number of patterns. For neurosurgery — discectomy, laminectomy, craniotomy, shunt, 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 neurosurgery — discectomy, laminectomy, craniotomy, shunt treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Lumbar discectomy
• Cervical discectomy
• Lumbar laminectomy
• Cervical laminectomy
• Lumbar fusion
• ACDF

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.