Ostomy Supplies — CPB 0906 | AETNA Coverage Update

TL;DR: Aetna modified CPB 0906, its ostomy supplies coverage policy, effective January 5, 2026. Here's what billing teams need to know about quantity limits, covered codes, and documentation requirements.

Aetna, a CVS Health company, updated Clinical Policy Bulletin CPB 0906 governing ostomy supplies for colostomies, ileostomies, and urinary ostomies. This coverage policy spans 99 HCPCS codes — from pouches and skin barriers to irrigation supplies and adhesives — and sets hard monthly quantity limits for each. If your team bills these supplies for Aetna members, you need to know exactly where those limits sit and what documentation backs up any exceptions before you submit.

Quick-Reference Table

Aetna Ostomy Supplies Coverage Criteria and Medical Necessity Requirements 2026

The core medical necessity standard in CPB 0906 is straightforward: ostomy supplies are covered when a member has a surgically created stoma to divert urine or fecal contents outside the body. That means colostomies, ileostomies, and urinary ostomies all qualify.

Where this coverage policy gets specific — and where claim denial risk lives — is in the quantity limits. Aetna sets monthly maximums for each supply category. The actual quantity considered medically necessary for a given member depends on ostomy type, stoma location, construction, and the condition of the peristomal skin. Those factors can push quantities above or below the table limits. But if you bill above the maximum, the documentation had better spell out why.

Here are the monthly quantity limits directly from the policy:

The policy also sets rules around substitutability. For liquid skin barriers, Aetna considers either spray, individual wipes, or swabs medically necessary — not both. Billing both in the same period is a denial waiting to happen. The same logic applies to night drainage for urinary ostomy patients: either a bag or a bottle, not both on the same day.

For members with continent stomas, Aetna covers one of the following per day to manage drainage: a stoma cap, stoma plug, stoma absorptive cover, or gauze pad. One. If your billing for these patients regularly includes more than one type on the same day, that's a documentation problem — or a charge capture problem.

Prior authorization requirements for ostomy supplies under CPB 0906 follow Aetna's standard DME review process. If you're unsure whether prior auth applies to specific codes in your market, check with your Aetna provider rep before the effective date or confirm with your compliance officer.

Aetna Ostomy Supplies Exclusions and Non-Covered Indications

CPB 0906 does not designate specific products as experimental or investigational — this isn't a policy built around technology assessments. The non-covered territory here is defined by quantity and duplication, not by product type.

Aetna will not cover quantities above the monthly limits unless the member's medical record clearly documents why those quantities are necessary. If a reviewer requests records and the documentation doesn't explain the excess, Aetna considers those additional units not medically necessary. That's the exposure point. It's not that the supply is wrong — it's that the record doesn't justify the volume.

Billing both a liquid barrier spray and individual wipes for the same member in the same period is not covered. Billing both a bag and a bottle for nighttime drainage for a urinary ostomy patient on the same day is not covered. These aren't gray areas. They're explicit policy positions.

Coverage Indications at a Glance

Aetna Ostomy Supplies Billing Guidelines and Action Items 2026

The effective date for this modified policy is January 5, 2026. If your team hasn't reviewed your ostomy supply billing workflows against the updated CPB 0906, do it now.

The real risk here isn't that supplies will be denied outright. It's that excess quantities get denied retroactively during a post-payment review because the medical record documentation wasn't tight enough. That's a recoverable problem — but only if you catch it before Aetna does.

CPT, HCPCS, and ICD-10 Codes for Ostomy Supplies Under CPB 0906

Covered HCPCS Codes (When Selection Criteria Are Met)

The policy data notes 19 additional HCPCS codes beyond those listed above. For the complete code set, access the full policy at app.payerpolicy.org/p/aetna/0906.

Key ICD-10-CM Diagnosis Codes

The policy data does not list specific ICD-10-CM codes. Ostomy supply claims should be supported by the appropriate diagnosis code reflecting the underlying condition requiring the stoma (e.g., colorectal cancer, Crohn's disease, bladder cancer). Confirm your ICD-10 mapping with your compliance officer if you're unsure which codes align with your patient population.