HCPCS code P9021 — Red blood cells unit.
Status: Active.
Effective Jan 1, 2001.
Source: CMS HCPCS Level II.
P9021
ActiveRed blood cells unit
Red blood cells, each unit
Category:
Pathology & Lab
Section:
P-codes: Pathology and Laboratory
Effective:
Jan 1, 2001
Code type:
alphanumeric
OPPS Status:
R
— Blood and blood products
OPPS APC:
9517
MUE — Medically Unlikely Edits
Maximum units of P9021 Medicare will pay for one beneficiary on one date of service. Claims exceeding the MUE are denied or returned for review.
| Service Type | Max Units / Day |
|---|---|
| Outpatient Hospital | 8 |
| Practitioner Services | 3 |
Source: CMS Medicare NCCI Medically Unlikely Edits
NCCI Edits — Reverse Direction
P9021 cannot be billed together with the following column 1 codes without appropriate documentation.
| Column 1 Code | Modifier |
|---|---|
| P9011 | Modifier cannot bypass edit |
| P9022 | Modifier may bypass edit |
| P9032 | Modifier may bypass edit |
| P9033 | Modifier may bypass edit |
| P9036 | Modifier may bypass edit |
| P9037 | Modifier may bypass edit |
| P9038 | Modifier may bypass edit |
| P9039 | Modifier may bypass edit |
| P9040 | Modifier may bypass edit |
Source: CMS National Correct Coding Initiative (NCCI)