Summary & Overview
HCPCS A6011: Collagen Wound Filler, Gel/Paste, Per Gram
HCPCS Level II code A6011 designates a collagen-based wound filler provided as a gel or paste and billed per gram of collagen. This code captures the supply of a topical wound management product used to fill wound cavities and support tissue healing. Nationally, wound care supplies and biologic dressings are important cost drivers in outpatient wound management and post-acute care, where appropriate product selection can affect healing times and overall resource use.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise description of what the code represents, typical sites of service, and the clinical context for use. The analysis highlights payer coverage patterns, reimbursement benchmarks, and common billing considerations relevant to suppliers and providers who furnish collagen-based wound fillers. The document also summarizes coding relationships and typical claim line elements where available.
This summary is intended for a national audience of providers, supply managers, and billing staff seeking clear information on HCPCS Level II code A6011, clinical use of collagen wound fillers, and the payer landscape affecting coverage and reimbursement for these products.
Billing Code Overview
HCPCS Level II code A6011 represents a collagen-based wound filler supplied as a gel or paste, billed per gram of collagen. This product is used as a topical wound management adjunct to fill wound cavities, support granulation tissue formation, and maintain a moist wound environment.
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Service type: Wound care product supply (topical wound filler)
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Typical site of service: Outpatient wound care settings, wound clinics, long-term care facilities, and other ambulatory settings where topical wound management products are applied
Clinical & Coding Specifications
Clinical Context
A typical patient is a 68-year-old with a chronic, non-healing lower extremity ulcer related to peripheral vascular disease and/or diabetes mellitus. After debridement in an outpatient wound clinic or hospital bedside, a clinician applies a collagen-based wound filler gel/paste (A6011) into the wound bed to provide a matrix for cellular ingrowth and moisture balance. The workflow includes wound assessment, measurement, cleansing, selective sharp debridement as needed, hemostasis, application of the collagen wound filler dosed by grams, secondary dressing placement, and patient education on offloading and dressing change frequency. Documentation includes wound dimensions, percent tissue types, amount (grams) of A6011 used, site of service (e.g., outpatient clinic, hospital inpatient bedside, skilled nursing facility), clinician performing the procedure, and any complications or additional services such as topical antimicrobials or grafting consideration.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Primary procedure | Used when the application of A6011 is the primary procedure performed during the encounter. |