A4366 – Ostomy vent, any type, each
HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental
HCPCS codeA4366
- Long description
- Ostomy vent, any type, each
- Short description
- Ostomy vent
- Pricing indicator
37Ostomy, tracheostomy and urological supplies- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
D1FProsthetic/Orthotic devices- Added
- January 1, 2004
- Last change
- January 1, 2004 – No change
Frequently asked questions
What is HCPCS code A4366?
A4366 is a HCPCS Level II code for ostomy vent, any type, each.
Does Medicare cover A4366?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby A codes
- A4356 – External urethral clamp or compression device (not to be used for catheter clamp), each
- A4357 – Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each
- A4358 – Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each
- A4360 – Disposable external urethral clamp or compression device, with pad and/or pouch, each
- A4361 – Ostomy faceplate, each
- A4362 – Skin barrier; solid, 4 x 4 or equivalent; each
- A4363 – Ostomy clamp, any type, replacement only, each
- A4364 – Adhesive, liquid or equal, any type, per oz
- A4367 – Ostomy belt, each
- A4368 – Ostomy filter, any type, each
- A4369 – Ostomy skin barrier, liquid (spray, brush, etc.), per oz
- A4371 – Ostomy skin barrier, powder, per oz
- A4372 – Ostomy skin barrier, solid 4 x 4 or equivalent, standard wear, with built-in convexity, each
- A4373 – Ostomy skin barrier, with flange (solid, flexible or accordion), with built-in convexity, any size, each
- A4375 – Ostomy pouch, drainable, with faceplate attached, plastic, each
- A4376 – Ostomy pouch, drainable, with faceplate attached, rubber, each
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.