Summary & Overview
HCPCS Level II A4377: Ostomy Pouch, Drainable, For Use on Faceplate, Plastic
HCPCS Level II code A4377 designates a drainable plastic ostomy pouch intended for use with a faceplate (flange). As a commonly billed ostomy supply, this code matters nationally because it affects coverage, access to supplies for patients with stomas, and billing workflows across durable medical equipment (DME) and outpatient supply channels. Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find an overview of clinical context for ostomy pouches, typical sites of service (home and outpatient settings), and what to expect in payer coverage patterns. The publication summarizes benchmark considerations, common billing practices, and relevant coding usage trends where available. It also highlights policy and coverage elements that influence reimbursement and patient access for ostomy supplies. Data not available in the input will be noted explicitly where gaps exist.
Billing Code Overview
HCPCS Level II code A4377 describes an ostomy pouch, drainable, for use on faceplate, plastic, each. This item is a single ostomy pouch designed to attach to a faceplate (flange) and allow drainage through a built-in drainable outlet. The service type is durable medical equipment / ostomy supply. The typical site of service is home or outpatient settings where ostomy supplies are used, including patient residence and ambulatory care environments.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a permanent end colostomy following low anterior resection for rectal cancer requires routine ostomy supplies. The clinician or certified ostomy nurse assesses the stoma and surrounding peristomal skin during an outpatient wound, ostomy, and continence (WOC) clinic visit or during home health nursing. The patient has a stoma with a two-piece ostomy system using a separate adhesive faceplate (flange) and changeable pouch. The clinician documents the need for a A4377 ostomy pouch, drainable, for use on a faceplate, plastic, each, based on pouch wear schedule, volume of effluent, and skin integrity. The supply is dispensed to the patient at the clinic, through a durable medical equipment (DME) supplier, or provided by home health personnel. Typical workflow steps: wound/ostomy assessment, measurement of stoma and faceplate opening, selection of a drainable plastic pouch compatible with the patient’s faceplate, documentation of medical necessity in the medical record (including diagnosis supporting ostomy care), and billing to the patient’s insurer with appropriate HCPCS A4377 and any applicable modifier(s). Typical site of service: outpatient clinic, physician office, or patient home via home health or DME delivery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Standard; no modifier |