A4228: Supplies for maintenance of non-insulin, device-drug combination infusion catheter, per week
A4228 is a HCPCS Level II code for supplies for maintenance of non-insulin, device-drug combination infusion catheter, per week. 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 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
The CMS record for A4228
- Long descriptor
- Supplies for maintenance of non-insulin, device-drug combination infusion catheter, per week
- Short descriptor
- Dev-drug combo cath supplies
- Added
- October 1, 2026
- BETOS
- D1E
- Pricing indicator
- 34: 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.
DME supplies. Price subject to floors and ceilings.
Codes adjacent to A4228
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If A4228 is not quite right, the correct code is very often within a few positions of it.
- A4218Sterile saline or water, metered dose dispenser, 10 ml
- A4220Refill kit for implantable infusion pump
- A4221Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately)
- A4222Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately)
- A4223Infusion supplies not used with external infusion pump, per cassette or bag (list drugs separately)
- A4224Supplies for maintenance of insulin infusion catheter, per week
- A4225Supplies for external insulin infusion pump, syringe type cartridge, sterile, each
- A4226Supplies for maintenance of insulin infusion pump with dosage rate adjustment using therapeutic continuous glucose sensing, per week
- A4230Infusion set for external insulin pump, non needle cannula type
- A4231Infusion set for external insulin pump, needle type
- A4232Syringe with needle for external insulin pump, sterile, 3 cc
- A4233Replacement battery, alkaline (other than j cell), for use with medically necessary home blood glucose monitor owned by patient, each
- A4234Replacement battery, alkaline, j cell, for use with medically necessary home blood glucose monitor owned by patient, each
- A4235Replacement battery, lithium, for use with medically necessary home blood glucose monitor owned by patient, each
- A4236Replacement battery, silver oxide, for use with medically necessary home blood glucose monitor owned by patient, each
- A4238Supply allowance for adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service