A9546
HCPCSCo57/58
Official HCPCS Level II long descriptor
Cobalt co-57/58, cyanocobalamin, diagnostic, per study dose, up to 1 microcurie
HCPCS Level II code A9546 is maintained by CMS and is active in the current quarterly release.
Short descriptor
Co57/58
Added to HCPCS: 2006-01-01
Nearby codes in A9
- A9536Tc99m depreotide
- A9537Tc99m mebrofenin
- A9538Tc99m pyrophosphate
- A9539Tc99m pentetate
- A9540Tc99m maa
- A9541Tc99m sulfur colloid
- A9542In111 ibritumomab, dx
- A9543Y90 ibritumomab, rx
- A9547In111 oxyquinoline
- A9548In111 pentetate
- A9550Tc99m gluceptate
- A9551Tc99m succimer
- A9552F18 fdg
- A9553Cr51 chromate
- A9554I125 iothalamate, dx
- A9555Rb82 rubidium
Where this code sits
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HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.