Menaflex — CPB 0786 | AETNA Coverage Update

TL;DR: Aetna, a CVS Health company, maintains its non-coverage position on the Menaflex device under CPB 0786, modified December 3, 2025. HCPCS code G0428 is explicitly not covered for any indication. Here's what billing teams need to know.

Aetna's Menaflex coverage policy under CPB 0786 classifies the Menaflex collagen meniscal implant as experimental, investigational, or unproven for all indications — including medial meniscus repair and reinforcement. The single HCPCS code tied to this device, G0428, is listed as not covered across the full range of relevant ICD-10 diagnosis codes. If your orthopedic or sports medicine practice bills Aetna for collagen meniscus implant procedures, this policy update is a direct claim denial risk you need to address before December 3, 2025.

Quick-Reference Table

Aetna Menaflex Coverage Criteria and Medical Necessity Requirements 2025

The Aetna Menaflex coverage policy under CPB 0786 is unambiguous: there are no covered indications. Aetna does not consider the Menaflex device — also known historically as the Collagen Meniscal Implant (CMI) or the Collagen Scaffold device — medically necessary for any patient population or clinical scenario.

Aetna's position is that the evidence for this device is insufficient to support medical necessity. That applies to the primary intended use — repair and reinforcement of the medial meniscus of the knee — and every other potential indication. There is no pathway to coverage, no exceptions list, and no prior authorization route that gets this device covered under an Aetna plan.

The practical implication for reimbursement is straightforward: G0428 billed to Aetna will be denied. It does not matter how the procedure is documented or what diagnosis code supports the clinical picture. The coverage policy blocks reimbursement at the procedure level.

If your practice has been billing G0428 to Aetna patients — or discussing this procedure as a treatment option without flagging the coverage issue — you need to change that process now. Patient responsibility conversations need to happen before the procedure, not after the claim comes back denied.

Aetna Menaflex Exclusions and Non-Covered Indications

Aetna classifies the Menaflex device as experimental, investigational, or unproven. That's the strongest non-coverage language Aetna uses, and it has specific consequences for your billing and appeals processes.

When Aetna labels a procedure "experimental or investigational," the denial reason code on the remittance will reflect that classification. Standard medical necessity appeals typically won't reverse these denials. The bar for overturning an experimental designation requires new published clinical evidence — not a physician attestation or a Letter of Medical Necessity.

The CPB 0786 Aetna system entry lists this non-coverage status across the full diagnostic spectrum tied to knee conditions — osteoarthritis, internal derangement, meniscal tears, pain, osteochondritis dissecans, and acute knee injuries. That breadth matters. Aetna isn't carving out a specific subset of patients. The non-coverage applies whether the patient has a traumatic medial meniscus tear (S83.211–S83.249) or chronic knee pain (M25.561–M25.569) or anything in between.

This is similar in structure to how Aetna handles other orthopedic devices and biologics where the clinical trial data hasn't matured into peer-reviewed consensus. Don't expect the coverage position to shift without a substantive change in the evidence base.

Coverage Indications at a Glance

There are no covered indications under CPB 0786. Every use case for G0428 billed to Aetna falls into the non-covered category.

Aetna Menaflex Billing Guidelines and Action Items 2025

The effective date is December 3, 2025. These actions should be completed before that date.

CPT, HCPCS, and ICD-10 Codes for Menaflex Under CPB 0786

Not Covered / Experimental HCPCS Codes

There are no covered CPT codes associated with this policy. G0428 is the sole procedure code, and it carries a blanket non-covered status.

Key ICD-10-CM Diagnosis Codes

These are the diagnosis codes Aetna lists in CPB 0786 as part of the non-covered code set. Billing G0428 with any of these codes will result in a claim denial.

The ICD-10 range here covers essentially the full spectrum of knee pathology that would lead a clinician to consider a meniscal implant. Aetna isn't leaving any diagnostic backdoor open. That's intentional — and it tells you the non-coverage position is firm.