External Breast Prosthesis — CPB 0097 | AETNA Coverage Update

Aetna modified CPB 0097 covering external breast prosthesis coverage policy, effective January 17, 2026. Here's what billing teams need to know before submitting claims.

Aetna, a CVS Health company, updated CPB 0097 to clarify medical necessity criteria, replacement schedules, and quantity limits for external breast prostheses, mastectomy bras, lymphedema sleeves, and related supplies. The update directly affects claims billed under HCPCS codes L8000–L8039, A4280, A6522–A6588, and S8422–S8424. If your practice handles post-mastectomy durable medical equipment or serves members with gender dysphoria, this coverage policy affects your reimbursement.

Quick-Reference Table

Aetna External Breast Prosthesis Coverage Criteria and Medical Necessity Requirements 2026

CPB 0097 Aetna covers external breast prosthesis under two qualifying conditions. The first is following a medically necessary mastectomy or lumpectomy. The second is for members with a gender dysphoria diagnosis.

The policy covers the following when medical necessity criteria are met:

The real issue here is the plan-level variation. Some Aetna plans limit coverage to an initial prosthesis only and don't cover replacements at all. Under those plans, members get an initial prosthesis and up to four initial mastectomy bras. "Initial" means purchased within one year after the mastectomy—not after the member's Aetna coverage starts. That distinction matters for claim denial prevention.

The Women's Health and Cancer Rights Act (WHCRA) of 1998 mandates coverage for breast prostheses and physical complications of mastectomy, including lymphedema. That federal mandate puts a floor under coverage, but it doesn't override plan-level quantity limits on replacement items.

The policy also defines who can document medical necessity. A treating practitioner means an MD, DO, physician assistant, nurse practitioner, or clinical nurse specialist. A prosthetist, orthotist, orthotic fitter, pedorthotist, physical therapist, or occupational therapist does not qualify as the treating practitioner for purposes of this coverage policy. Note that the source policy was truncated at "occupatio" — consult the full CPB 0097 policy text to confirm the complete list of excluded provider types. Get the order from the right provider type or the claim will deny.

Prior authorization requirements vary by plan. Check the member's specific benefit plan before submitting claims for replacements or higher-quantity orders. If you're unsure whether a member's plan covers replacements, pull the benefit plan description before billing—not after.

Aetna External Breast Prosthesis Exclusions and Non-Covered Indications

Two HCPCS codes are explicitly not covered under CPB 0097, and billing them risks automatic denial.

L8031 — Breast prosthesis, silicone or equal, with integral adhesive. Aetna considers the adhesive-integrated version not medically necessary. Their position is that no clinical advantage over a standard silicone prosthesis has been demonstrated. This is a firm exclusion, not a prior auth situation. Bill L8030 for the standard silicone prosthesis instead.

L8035 — Custom breast prosthesis, post mastectomy, molded to patient model. The additional features of a custom-fabricated prosthesis compared to a pre-fabricated silicone prosthesis are not considered medically necessary. If your supplier is providing custom-molded prostheses and billing L8035, expect denial.

Two other indications are also not covered:

If your patients are getting custom prostheses because of a documented clinical reason that goes beyond standard indications, talk to your compliance officer before submitting those claims. There's no appeals pathway described in the policy for L8035, and fighting that denial is an uphill battle.

Coverage Indications at a Glance

Aetna External Breast Prosthesis Billing Guidelines and Action Items 2026

1. Audit your charge capture for L8031 and L8035 immediately.
Both codes are explicitly not covered. If either appears in your charge master or DME billing templates for Aetna patients, remove them now. Claims submitted with these codes on or after January 17, 2026 will deny. Claims submitted before that date may already be under scrutiny.

2. Separate plan-level benefit verification from clinical coverage verification.
The policy has two layers: what CPB 0097 covers clinically, and what the member's specific plan allows. Some Aetna plans cap coverage at the initial prosthesis with no replacements. Build a benefit verification step specifically for CPB 0097 items—don't rely on a generic DME check. Do this before billing L8030 replacements or any mastectomy bra replacement codes.

3. Confirm the ordering provider type before submitting claims.
Aetna's definition of "treating practitioner" for this policy excludes prosthetists, orthotists, orthotic fitters, pedorthotists, physical therapists, and occupational therapists. The source policy was truncated — consult the full CPB 0097 text to confirm the complete exclusion list. The order must come from an MD, DO, PA, NP, or CNS. If your supplier accepts orders from other provider types, you're exposing yourself to claim denial on the front end. Update your intake forms to require the right provider type.

4. Apply the correct replacement schedule to each prosthesis type.
Silicone prostheses (L8030): one replacement every 24 months. Fabric, foam, or fiber-filled prostheses: every six months — verify the applicable HCPCS code against the benefit plan, as the policy does not explicitly assign a code to this category. Nipple prostheses (L8032, L8033): every three months. If you're billing replacements more frequently, you need documented medical necessity in the file—not just a clinical note. The policy is explicit that more frequent replacements require documentation.

5. Flag gender dysphoria claims for the same quantity rules as post-mastectomy claims.
Members with gender dysphoria qualify for the same coverage as post-mastectomy patients. That includes up to six mastectomy bras initially (or four under limited plans), one prosthesis per side, and the same replacement schedules. Make sure your billing team knows this isn't a separate benefit—it uses the same codes and limits.

6. Document bilateral mastectomy or gender dysphoria diagnosis before billing two prostheses.
Two prostheses, one per side, require either a bilateral mastectomy or gender dysphoria diagnosis. The relevant ICD-10 codes from the diagnosis ranges C50.011–C50.919 and the gender dysphoria codes need to be on the claim. Missing or mismatched diagnosis codes are the fastest route to a claim denial here.

7. Build a prior authorization workflow for replacement items.
The policy doesn't eliminate prior auth requirements—those live at the plan level. Replacements, especially for L8030 silicone prostheses and lymphedema sleeves (L8010, A6578), are the most likely items to require prior authorization. Don't assume coverage; verify it before dispensing.

CPT, HCPCS, and ICD-10 Codes for External Breast Prosthesis Under CPB 0097

Covered HCPCS Codes (When Selection Criteria Are Met)

Not Covered HCPCS Codes

Key ICD-10-CM Diagnosis Codes

Note: The full ICD-10 code list under CPB 0097 includes 119 codes covering malignant and in situ breast neoplasms. Review the complete list at the Aetna CPB 0097 source policy before finalizing your diagnosis code mapping.