Summary & Overview
HCPCS A4412: Ostomy Pouch, Drainable, High Output, Two-Piece System
HCPCS Level II code A4412 denotes a drainable, high-output ostomy pouch intended for use with a two-piece barrier and flange, supplied without a filter. This code captures a commonly needed durable medical supply for patients with high-output stomas and is relevant across home health, outpatient, and long-term care settings. Nationally, proper coding of ostomy supplies affects durable medical equipment (DME) billing, coverage determinations, and access to necessary supplies for patients managing stomas.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise guide to the clinical purpose of the item, typical sites of service, and payer coverage context. The publication outlines benchmarking considerations, coding and billing implications for DME suppliers and clinicians, and the clinical circumstances in which a high-output drainable pouch is used. It also flags where input was not provided so readers can identify gaps: associated taxonomies, specific ICD-10 diagnoses, related codes, and service line details are not available in the input. The content is intended for a national audience of billing professionals, DME suppliers, and clinicians involved in ostomy care.
Billing Code Overview
HCPCS Level II code A4412 describes an ostomy pouch, drainable, high output, for use on a barrier with flange (2 piece system), without filter, each. This item is a disposable or replaceable pouch designed to collect effluent from a surgically created stoma and is intended for patients with high-output stomas who use a two-piece ostomy system with a separate barrier (flange).
Service Type: Durable medical supply for ostomy management
Typical Site of Service: Home use, outpatient clinics, long-term care facilities, and other non-acute care settings where patients or caregivers manage ostomy appliances
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a surgically created stoma (ileostomy or colostomy) experiencing high-volume effluent requiring a drainable ostomy pouch. The patient may be recently discharged after bowel resection, inflammatory bowel disease surgery, or emergent colectomy for ischemia or obstruction, and requires outpatient supply of a two-piece, flange-compatible, drainable ostomy pouch without a filter (A4412).
Clinical workflow: The wound/ostomy nurse evaluates the stoma and peristomal skin, determines pouch type and flange compatibility, and documents pouch size and frequency of changes. A prescription for A4412 is completed specifying drainage-capable, high-output pouching needs. Supplies are processed by durable medical equipment (DME) vendor and shipped to home. Follow-up visits assess peristomal skin, pouch performance, patient technique, and need for alternate pouch types or accessories.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Routine billing when no modifier applies |
11 |