P9021 HCPCS Level II code: Red blood cells, each unit
P9021 is the HCPCS code for “Red blood cells, each unit” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
P9021Red blood cells, each unit
Short description: Red blood cells unit
HCPCS · United States
Medicare details
The indicators CMS publishes with P9021 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- Reasonable charge
- Type of service
- Whole blood only
- BETOS category
- Lab tests - other (Non-Medicare fee schedule)
- Added
- Jan 1, 1987
Where P9021 sits
- 1P codesPathology and laboratory services
- 2Active code P9021Red blood cells, each unit
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code P9021 mean?
P9021 is the HCPCS code for “Red blood cells, each unit” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover P9021?
CMS lists P9021’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Reasonable charge”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside P9021
All P codesP9011Blood, split unitP9012Cryoprecipitate, each unitP9016Red blood cells, leukocytes reduced, each unitP9017Fresh frozen plasma (single donor), frozen within 8 hours of collection, each unitP9019Platelets, each unitP9020Platelet rich plasma, each unitP9022Red blood cells, washed, each unitP9023Plasma, pooled multiple donor, solvent/detergent treated, frozen, each unitP9025Plasma, cryoprecipitate reduced, pathogen reduced, each unitP9026Cryoprecipitated fibrinogen complex, pathogen reduced, each unitP9027Red blood cells, leukocytes reduced, oxygen/ carbon dioxide reduced, each unitP9031Platelets, leukocytes reduced, each unit