How to appeal an Aetna ibs & functional gi 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 ibs & functional gi

Cited policy: Aetna CPB Linzess (Linaclotide) Step Therapy

Trial and failure of PEG 3350 >=4 weeks AND a stimulant laxative (senna or bisacodyl) >=2 weeks. Diagnosis IBS-C or CIC by Rome IV. Age >=18 (pediatric 6-17 functional constipation per Jun 12, 2023 expansion).

How Aetna denies ibs & functional gi — and how to counter it

Where Aetna pushes back: 1) Step-therapy: try OTC laxatives first; 2) Insufficient documentation.

Counter-arguments that hold up: ACG 2021 (Lacy Am J Gastroenterol 2021) STRONG recommendation, high-quality evidence for linaclotide in IBS-C. Document PEG 3350 / senna doses + dates + persistent IBS-SSS >175. Cite T2P / Trial 31 (Chey 2012, Rao 2012). FDA approval Aug 30, 2012.

What Aetna typically denies for ibs & functional gi

Across Aetna's commercial and Medicare books, denials cluster around a small number of patterns. For ibs & functional gi, 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 ibs & functional gi treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Linzess
• Trulance
• Amitiza
• Motegrity
• Viberzi
• Xifaxan IBS-D

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.