Summary & Overview
HCPCS A4415: Ostomy Skin Barrier with Flange Larger Than 4 x 4 Inches
HCPCS Level II code A4415 represents an ostomy skin barrier with flange (solid, flexible, or accordion), without built-in convexity, sized larger than 4 x 4 inches and billed per item. This supply is central to ostomy management for patients requiring a secure interface between the stoma and pouching system, and it affects durable medical equipment (DME) supply utilization nationwide. Coverage and payment for A4415 influence patient access to appropriate ostomy supplies and have implications for home health and outpatient wound care services.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of how A4415 is defined clinically and operationally, what typical sites of service are, and which payers are commonly involved in coverage decisions. The publication also outlines available benchmarks, common modifiers, and related administrative considerations where provided.
The report is intended for clinicians, billing professionals, and policy analysts seeking a clear national summary of A4415, including clinical context for coding, payer coverage landscape, and areas where policy or billing guidance can affect utilization and patient access. Data not available in the input is indicated where applicable.
Billing Code Overview
HCPCS Level II code A4415 describes an ostomy skin barrier with flange (solid, flexible, or accordion), without built-in convexity, sized larger than 4 x 4 inches, billed each. This supply is used to protect peristomal skin and secure an ostomy pouching system.
-
Service type: Ostomy supply (skin barrier/flange)
-
Typical site of service: Durable medical equipment/supply distribution, home use, outpatient clinics, wound and ostomy care settings
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a permanent end colostomy presents to an outpatient ostomy clinic for routine appliance management and skin care. The patient reports peristomal skin irritation and intermittent leakage with their current large ostomy skin barrier. The ostomy nurse assesses the stoma size and peristomal skin, measures a stoma that requires a barrier larger than 4 x 4 inches, selects an ostomy skin barrier with a flange (solid, flexible or accordion) without built-in convexity, and replaces the appliance while documenting product code A4415 on the order and claim. The clinical workflow includes stoma measurement, skin assessment, selection of the appropriately sized barrier, patient education about wear time and skin care, and documentation of supply dispensed in the durable medical equipment record. Typical sites of service include outpatient ostomy or wound clinics, home health visits, long-term care facilities, and outpatient durable medical equipment dispensing locations.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier - standard service | Use when no special circumstances apply and the item is billed as usual. |
11 |