A4288 — Valve for breast pump, replacement
A4288 is a HCPCS Level II code for valve for breast pump, replacement. It belongs to the Transportation, Medical & Surgical Supplies, Administrative section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusX
Statutory exclusion. The item or service is not within the statutory definition of 'physician services', so the fee schedule never pays it.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for A4288
- Long descriptor
- Valve for breast pump, replacement
- Short descriptor
- Replacement breastpump valve
- Added
- October 1, 2025
- BETOS
- Z2
- Pricing indicator
- 46 — DMEPOS
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Carrier priced — not otherwise classified, individual determination, carrier discretion, or gap-filled amounts.
Codes adjacent to A4288
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If A4288 is not quite right, the correct code is very often within a few positions of it.
- A4280Adhesive skin support attachment for use with external breast prosthesis, each
- A4281Tubing for breast pump, replacement
- A4282Adapter for breast pump, replacement
- A4283Cap for breast pump bottle, replacement
- A4284Breast shield and splash protector for use with breast pump, replacement
- A4285Polycarbonate bottle for use with breast pump, replacement
- A4286Locking ring for breast pump, replacement
- A4287Disposable collection and storage bag for breast milk, any size, any type, each
- A4290Sacral nerve stimulation test lead, each
- A4295Intermittent urinary catheter; straight tip, hydrophilic coating, each
- A4296Intermittent urinary catheter; coude (curved) tip, hydrophilic coating, each
- A4297Intermittent urinary catheter; hydrophilic coating, with insertion supplies
- A4300Implantable access catheter, (e.g., venous, arterial, epidural subarachnoid, or peritoneal, etc.) external access
- A4301Implantable access total catheter, port/reservoir (e.g., venous, arterial, epidural, subarachnoid, peritoneal, etc.)
- A4305Disposable drug delivery system, flow rate of 50 ml or greater per hour
- A4306Disposable drug delivery system, flow rate of less than 50 ml per hour
Questions about A4288
What is HCPCS code A4288?
A4288 is a HCPCS Level II code for valve for breast pump, replacement. It sits in the Transportation, Medical & Surgical Supplies, Administrative section.
Does Medicare cover A4288?
The CMS HCPCS file marks A4288 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is A4288 paid under the physician fee schedule?
A4288 carries PFS status code X. Statutory exclusion. The item or service is not within the statutory definition of 'physician services', so the fee schedule never pays it.