Summary & Overview
HCPCS Level II A5051: Ostomy Pouch, Closed, One-Piece with Barrier
HCPCS Level II code A5051 designates a one-piece, closed ostomy pouch with an attached barrier, supplied per item. This durable medical supply is widely used in ostomy care for patients with colostomies or other stomas that produce low-output, formed stool where a closed collection system is appropriate. Nationally, accurate coding for ostomy supplies supports continuity of care, appropriate coverage determinations, and correct claims processing for beneficiaries who depend on routine supply replacement.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for A5051, typical sites of service where the supply is provided, and the payer landscape addressed in the report. The publication outlines common billing practices, coding considerations for supply claims, and benchmark topics relevant to reimbursement and utilization for ostomy supplies.
This summary equips clinicians, billing staff, and policy analysts with a concise reference to the code’s clinical purpose, expected service settings, and the payer mix considered in the accompanying materials. Data not available in the input is noted where applicable in detailed sections.
Billing Code Overview
HCPCS Level II code A5051 describes an ostomy pouch, closed; with barrier attached (1 piece), each. This item is a one-piece, closed ostomy pouch intended for collection and disposal of stoma output when a drainable pouch is not required.
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Service type: Durable medical supply for ostomy care
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Typical site of service: Outpatient supply dispensed in ambulatory clinics, home health deliveries, specialty medical supply stores, and retail pharmacies
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a long-standing history of colorectal cancer undergoes a permanent end colostomy following a low anterior resection complicated by anastomotic failure. The surgical team constructs a mature stoma on the abdominal wall; the patient is discharged with ostomy supplies ordered for home use. The order includes a one-piece closed ostomy pouch with an integrated skin barrier for single-use wear, coded as A5051 per HCPCS Level II. In the ambulatory supply workflow, a wound, ostomy, and continence (WOC) nurse assesses stoma size and skin condition, selects an appropriately sized barrier, and documents pouch type, wear time instructions, and patient education. Durable medical equipment (DME) or supplier staff verify coverage eligibility with payors, obtain any required prior authorization or supplier documentation, and deliver the specified quantity of A5051 pouches to the patient’s home. Typical site of service is outpatient supply distribution (home or outpatient clinic), with clinical follow-up by the surgical team or WOC nurse for skin complications, pouch fit, and replacement scheduling.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Default state when no special modifier applies |
11 | Primary procedure | When this supply is the principal billed item on the claim |
52 | Reduced services | If fewer items or partial supply is provided compared with standard allowance |
53 | Discontinued procedure | If order was canceled before delivery and supply was not provided |
59 | Data not available in the input. | |
62 | Two surgeons | If two providers share operative responsibility involving stoma construction and billing for related services (rare for supply-only) |
78 | Unplanned return to OR | If pouch change accompanies an unplanned return to the operating room (supply billed in perioperative setting) |
80 | Assistant at surgery | If assistant bills for supplies in context of operative care involving the stoma |
AS | Physician assistant services | When a physician assistant provides clinical services related to ostomy care billed separately |
NU | New equipment | When the supplied ostomy pouch is the patient’s initial provision of this device type |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
252S00000X | General Surgery | Commonly performs ostomy creation and postoperative management |
103T00000X | Wound Care (Wound Care Nurse) | Wound, ostomy, and continence nurses assess fit and provide patient education |
207L00000X | Gastroenterology | Manages underlying GI disease and coordinates ostomy care |
331J00000X | Colorectal Surgery | Subspecialists who perform complex stoma construction and follow-up |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
C18.9 | Malignant neoplasm of colon, unspecified | Colon cancer frequently requires colectomy with colostomy and subsequent use of closed ostomy pouches like A5051 |
K91.1 | Postprocedural intestinal obstruction | Postoperative complications can necessitate temporary or permanent ostomy and supply needs for A5051 |
K94.2 | Enterostomy complication | Stoma-related complications (skin irritation, leakage) directly impact pouch selection and frequency of replacement |
K57.30 | Diverticulosis of large intestine without perforation or abscess without bleeding | Complicated diverticular disease can lead to surgical resection with colostomy and need for A5051 |
C20 | Malignant neoplasm of rectum | Rectal cancer often leads to permanent colostomy; closed pouches like A5051 are commonly used |
Z43.2 | Attention to colostomy | Postoperative and durable medical equipment encounters for ostomy supplies are coded with this for administrative tracking |
K63.2 | Fistula of intestine | Enteric fistulas may require diversion with a stoma and use of ostomy pouches such as A5051 |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
44143 | Colectomy, partial; with colostomy or ileostomy | Surgical procedure that results in a stoma and subsequent need for A5051 pouches |
44625 | Local revision of stoma | Performed when stoma revision is required; alters pouching needs and sizing for A5051 |
97762 | Comprehensive training in use of durable medical equipment, prosthetics, orthotics and supplies (DMEPOS), 1 hour | Ostomy self-care and pouching education provided by WOC nurse; supports appropriate use of A5051 |
49905 | Stomal revision, not otherwise specified (may be used for closures/revisions) | Revisions affect pouch selection and timing of supply issuance |
99401 | Preventive counseling, individual; approximately 15 minutes | Patient education visit or counseling about ostomy care and lifestyle adjustments associated with use of A5051 |