A4771
HCPCSSerum clotting time tube
Official HCPCS Level II long descriptor
Serum clotting time tube, for dialysis, per 50
HCPCS Level II code A4771 is maintained by CMS and is active in the current quarterly release.
Short descriptor
Serum clotting time tube
Added to HCPCS: 1986-01-01
Nearby codes in A4
- A4737Inj anesthetic per 10 ml
- A4740Shunt accessory
- A4750Art or venous blood tubing
- A4755Comb art/venous blood tubing
- A4760Dialysate sol test kit, each
- A4765Dialysate conc pow per pack
- A4766Dialysate conc sol add 10 ml
- A4770Blood collection tube/vacuum
- A4772Blood glucose test strips
- A4773Occult blood test strips
- A4774Ammonia test strips
- A4802Protamine sulfate per 50 mg
- A4860Disposable catheter tips
- A4870Plumb/elec wk hm hemo equip
- A4890Repair/maint cont hemo equip
- A4911Drain bag/bottle
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.