A4233 HCPCS code: Replacement battery, alkaline (other than j cell), for use with medically necessary home blood glucose monitor owned by patient, each

A4233 is the HCPCS Level II code for replacement battery, alkaline (other than j cell), for use with medically necessary home blood glucose monitor owned by patient, each. The 2026 Medicare DMEPOS fee schedule pays $0.51 (NU, new equipment, purchased) depending on the state. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 2 per day on DME suppliers. Medicare volume fell 53% from 2022 to 2024 (180,060 to 84,709 services). In 2024, 19 suppliers billed Medicare for A4233 (purchases), serving 31,372 beneficiaries; Florida, Texas, New York accounted for 23% of services. Its average fee ranks 1 of 5 A42 codes billed NU (family range $0.51–$8.32).

Code details

2026 Medicare DMEPOS fee schedule for A4233

How the A4233 fee compares

Who bills A4233 (2024)

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for A4233, 2022–2024

States with the most A4233 services (2024)

NCCI unit limits (MUE)

Medicare policy articles for this code

• A52464: Glucose Monitor - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance

Covered diagnoses (461 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

Showing 10 of 461. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for A4233

• 2006-01-01: A4233 added to HCPCS Level II
• Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01

Frequently asked questions

What is HCPCS code A4233?

A4233 is the HCPCS Level II code for replacement battery, alkaline (other than j cell), for use with medically necessary home blood glucose monitor owned by patient, each. Short descriptor: "Alkalin batt for glucose mon".

How much does Medicare pay for A4233?

Under the 2026 DMEPOS fee schedule, non-rural state fees are NU (new equipment, purchased): $0.51. Rural fees can be higher.

Does Medicare cover A4233?

Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.

Which diagnoses support coverage for A4233?

Medicare policy articles that cite A4233 list 461 covered ICD-10-CM diagnosis codes across 1 article. The most cited include E08.00 (Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)), E08.01 (Diabetes mellitus due to underlying condition with hyperosmolarity with coma), E08.10 (Diabetes mellitus due to underlying condition with ketoacidosis without coma). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

Did the Medicare fee for A4233 change in 2026?

The average non-rural state fee for NU moved from $0.51 in 2025 to $0.51 in 2026 (+0.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.

How many units of A4233 can be billed per day?

2 on DME suppliers (NCCI medically unlikely edits).

Related A42 codes

• A4206 — Syringe with needle, sterile, 1 cc or less, each
• A4207 — Syringe with needle, sterile 2 cc, each
• A4208 — Syringe with needle, sterile 3 cc, each
• A4209 — Syringe with needle, sterile 5 cc or greater, each
• A4210 — Needle-free injection device, each
• A4211 — Supplies for self-administered injections
• A4212 — Non-coring needle or stylet with or without catheter
• A4213 — Syringe, sterile, 20 cc or greater, each
• A4215 — Needle, sterile, any size, each
• A4216 — Sterile water, saline and/or dextrose, diluent/flush, 10 ml ($0.53–$0.99)
• A4217 — Sterile water/saline, 500 ml ($2.18–$4.93)
• A4218 — Sterile saline or water, metered dose dispenser, 10 ml

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Next steps

• Run a reimbursement report for a device billed under A4233
• Watch A4233 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for A4233

Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.

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