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HCPCS Level II · Transportation, medical and surgical supplies

A4239Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service

✓ Active

Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.

About A4239

A4239 is an HCPCS Level II code in the A series (transportation, medical and surgical supplies), describing supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service.

It was added to HCPCS effective 01/01/2023.

Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.

Details

Short description
Non-adju cgm supply allow
Date added
01/01/2023
Action effective
01/01/2023
BETOS
D1E

Related A42xx codes

Common questions about A4239

Is HCPCS A4239 still valid?

Yes. A4239 is active in the CMS October 2026 HCPCS file.

Does Medicare cover A4239?

Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.