Summary & Overview
HCPCS A6604: Gradient Compression Foam Sheet, 250 cm²
HCPCS Level II code A6604 denotes a low density flat foam sheet used as a gradient compression bandaging supply, measured per 250 square centimeters. This supply item supports compression therapy for wound management and venous insufficiency when incorporated into multilayer bandaging systems. Nationally, accurate coding of such durable medical supplies affects claims processing, coverage determinations, and clinical care coordination for patients requiring compression. Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise benchmarks on payer coverage practices, common billing modifiers and claim considerations, and clinical context for use in outpatient and home health settings. The publication highlights typical sites of service, coding description precision, and operational points for billing teams and revenue cycle staff. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes is noted where applicable. The content is intended for national audiences interested in supply-level billing, payer policy alignment, and procedural context for compression therapy supplies.
Billing Code Overview
HCPCS Level II code A6604 describes a gradient compression bandaging supply: a low density flat foam sheet supplied per 250 square centimeters, each. This item is a single-use wound care or compression accessory used to provide graduated pressure when incorporated into compression bandaging systems.
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Service Type: Durable medical supply / compression therapy accessory
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Typical Site of Service: Outpatient clinics, home health care settings, wound care centers, and other ambulatory care environments where compression therapy is applied
Clinical & Coding Specifications
Clinical Context
A patient with chronic venous insufficiency presents to an outpatient wound care clinic for management of a non-healing lower-extremity venous ulcer. The clinician selects a A6604 low-density flat foam sheet to create a gradient compression bandage over the wound dressing to improve venous return and reduce edema. The workflow includes wound assessment, measurement and cleansing, application of primary dressing, sizing and cutting the A6604 foam sheet to provide graduated compression across the limb segment (per 250 square centimeters unit pricing), securing the foam with secondary bandaging, and documenting size, placement, and number of units used. Typical sites of service are outpatient wound centers, hospital outpatient departments, skilled nursing facilities, home health visits, and physician offices where compression bandaging supplies are provided as part of durable medical supply or outpatient supply services.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | When no special modifier applies to the supply claim |
22 |