HCPCS A6023: Collagen Dressing, Sterile, >48 sq. in.

HCPCS Level II code A6023 denotes a sterile collagen dressing larger than 48 square inches, used as an advanced wound care supply to support tissue repair. Nationally, this code is relevant for facilities and clinicians managing complex or large wounds where biologic dressings are indicated. Use of large collagen dressings affects supply cost, documentation, and billing workflows across outpatient, home health, and long-term care settings.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coverage considerations and typical sites of service, benchmarks for utilization and reimbursement ranges where available, and clinical context explaining when a large collagen dressing is typically applied. The publication outlines common billing modifiers and administrative factors that affect claim adjudication, and it flags areas where payers often require supporting documentation such as wound measurements, wound etiology, and evidence of prior standard wound care.

This summary is intended for billing managers, clinicians involved in wound care, and policy analysts seeking a concise national perspective on coding, coverage issues, and administrative considerations for HCPCS Level II code A6023.

Billing Code Overview

HCPCS Level II code A6023 describes a collagen dressing, sterile, size more than 48 sq. in., each. This item is a biologic wound dressing composed primarily of collagen, intended to support wound healing through a sterile, absorbable matrix applied directly to the wound surface.

Service type: Wound care supply — advanced biologic dressing

Typical site of service: Outpatient wound care clinics, hospital outpatient departments, long-term care facilities, and home health settings where advanced dressings are applied by clinicians or trained caregivers.

Clinical Context

A typical patient is a 68-year-old with a chronic non-healing lower extremity wound after venous stasis ulcer debridement. The wound measures 60 square inches after surgical debridement. The clinician applies a sterile collagen dressing sized more than 48 square inches (A6023) to provide a biologic scaffold that supports granulation and cellular migration. The procedure is performed in an outpatient wound care clinic or ambulatory surgery center. The clinical workflow includes wound assessment, measurement, cleansing and debridement as indicated, application of the sterile collagen dressing to cover the wound bed, fixation with appropriate secondary dressings, documentation of wound size and appearance, and scheduling follow-up visits for dressing changes and reassessment. The typical site of service is an outpatient wound care clinic, physician office, or ambulatory surgical center when the dressing is applied as part of wound management.

Coding Specifications

Modifier	Description	When to Use
`00`	Default/No Modifier	When no specific modifier applies to the service.
`26`	Professional Component

Taxonomy Code	Specialty	Notes
207Q00000X	Physical Medicine & Rehabilitation	Wound care specialists and rehabilitation physicians who manage complex wounds.
207L00000X	Dermatology	Dermatologists who treat chronic skin and soft tissue wounds and apply advanced dressings.
207RC0000X	Family Medicine	Primary care physicians who manage outpatient wound care and apply dressings.
208000000X	General Surgery	Surgeons who perform debridement and apply biologic dressings in operative and clinic settings.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I83.013`	Varicose veins of left lower extremity with ulcer of ankle and/or foot	Venous stasis ulcers commonly require collagen dressing to promote healing after debridement.
`I83.113`	Varicose veins of right lower extremity with ulcer of ankle and/or foot	Common indication for large-area collagen dressings when ulcer size exceeds 48 sq. in.
`L97.221`	Non-pressure chronic ulcer of right calf limited to breakdown of skin	Chronic non-healing ulcers of the calf may be treated with collagen dressings to support granulation.
`L97.322`	Non-pressure chronic ulcer of left lower leg with fat layer exposed	Deeper chronic wounds requiring biologic scaffolds to facilitate tissue regeneration.
`E11.621`	Type 2 diabetes mellitus with foot ulcer	Diabetic foot ulcers often require advanced wound care including collagen dressings after debridement.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`11042`	Debridement, subcutaneous tissue, first 20 sq cm or less	Often performed prior to application of a collagen dressing to remove devitalized tissue.
`11044`	Debridement, muscle and/or fascia, first 20 sq cm or less	Deep debridement code used when deeper infected or necrotic tissue is removed before dressing placement.
`97597`	Debridement (e.g., high-pressure waterjet, sharp) of open wound, first 20 sq cm	Outpatient sharp or mechanical debridement commonly done in wound clinics prior to dressing application.
`97598`	Each additional 20 sq cm (use with `97597`)	Used when debridement area exceeds the primary unit, relevant for large wounds requiring `A6023`.
`29580`	Application of multi-layer compression system	Often used concurrently for venous stasis ulcers after collagen dressing placement to support healing.

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Summary & Overview