HCPCS Level II · Transportation, medical and surgical supplies
A9559Cobalt co-57 cyanocobalamin, oral, diagnostic, per study dose, up to 1 microcurie
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About A9559
A9559 is an HCPCS Level II code in the A series (transportation, medical and surgical supplies), describing cobalt co-57 cyanocobalamin, oral, diagnostic, per study dose, up to 1 microcurie.
It was added to HCPCS effective 01/01/2006.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Co57 cyano
- Date added
- 01/01/2006
- Action effective
- 01/01/2006
- BETOS
- I1E
Related A95xx codes
- A9500Technetium tc-99m sestamibi, diagnostic, per study dose
- A9501Technetium tc-99m teboroxime, diagnostic, per study dose
- A9502Technetium tc-99m tetrofosmin, diagnostic, per study dose
- A9503Technetium tc-99m medronate, diagnostic, per study dose, up to 30 millicuries
- A9504Technetium tc-99m apcitide, diagnostic, per study dose, up to 20 millicuries
- A9505Thallium tl-201 thallous chloride, diagnostic, per millicurie
- A9506Graphite crucible for preparation of technetium tc 99m-labeled carbon aerosol, one crucible
- A9507Indium in-111 capromab pendetide, diagnostic, per study dose, up to 10 millicuries
- A9508Iodine i-131 iobenguane sulfate, diagnostic, per 0.5 millicurie
- A9509Iodine i-123 sodium iodide, diagnostic, per millicurie
- A9510Technetium tc-99m disofenin, diagnostic, per study dose, up to 15 millicuries
- A9512Technetium tc-99m pertechnetate, diagnostic, per millicurie
Common questions about A9559
Is HCPCS A9559 still valid?
- Yes. A9559 is active in the CMS October 2026 HCPCS file.
Does Medicare cover A9559?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.