Summary & Overview
HCPCS A4431: Urinary Ostomy Pouch with Faucet-Type Tap, One-Piece
HCPCS Level II code A4431 identifies a one-piece urinary ostomy pouch with an attached barrier and a faucet-type tap with valve. This durable medical equipment code covers a specific urostomy collection device used by patients with urinary diversions. Nationally, ostomy supplies represent a consistent component of post-operative and chronic wound care spending, and precise coding affects coverage, billing accuracy, and patient access to appropriate devices.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage patterns, reimbursement benchmarks where available, and clinical context around device selection and typical use settings.
Readers will learn what A4431 represents clinically and operationally, where the device is typically supplied and used, and which major payers are included in the coverage review. The report also summarizes available benchmarks, common billing and coding considerations, and policy updates relevant to ostomy supply coverage. Data not available in the input includes specific reimbursement rates, payer-specific policy citations, and detailed ICD-10 linkage.
Billing Code Overview
HCPCS Level II code A4431 describes an ostomy pouch for urinary use that is a one-piece system with an attached barrier and a faucet-type tap with valve. This item is typically used as a disposable or replaceable urinary ostomy appliance for patients requiring a urostomy collection device.
Service type: Durable medical equipment / ostomy supplies
Typical site of service: Home use or outpatient supply setting, with dispensing through DME suppliers, home medical equipment vendors, or outpatient clinics.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a long-standing history of neurogenic bladder secondary to spinal cord injury presents for routine ostomy supply replacement. He has a previously created urostomy (ileal conduit) and requires a one-piece urinary ostomy pouch with an attached skin barrier and a faucet-type tap with valve for safe drainage during home use. The typical workflow includes: outpatient clinic or durable medical equipment (DME) supplier verification of the prescription, measurement of stoma and peristomal skin assessment by a wound/ostomy nurse, selection of the appropriate product size and adhesive barrier, documentation of medical necessity and frequency of supplies, and dispensation with patient education on pouch emptying and valve operation. Typical site of service is an outpatient clinic, home health setting, or DME supplier/pharmacy facilitating home delivery of the ostomy pouch. The procedure is supply-based, not a surgical procedure; counseling and teaching occur in the clinic or home environment, and clinical follow-up addresses peristomal skin integrity and device function.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier specified (default) | Use when no specific modifier applies and standard billing is appropriate |
11 |