ICD-10 · PDGM grouping
Z67-Z67 — Blood type
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
Codes in range
14
No clinical group
14
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
None of the 14 codes in Z67-Z67 is assigned a PDGM clinical group. A 30-day period cannot be grouped from any of them, so none can hold the primary position on a home health claim.
Code families in Z67-Z67
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in Z67-Z67
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| Z6710 | Type A blood, Rh positive | None | Cannot lead a claim |
| Z6711 | Type A blood, Rh negative | None | Cannot lead a claim |
| Z6720 | Type B blood, Rh positive | None | Cannot lead a claim |
| Z6721 | Type B blood, Rh negative | None | Cannot lead a claim |
| Z6730 | Type AB blood, Rh positive | None | Cannot lead a claim |
| Z6731 | Type AB blood, Rh negative | None | Cannot lead a claim |
| Z6740 | Type O blood, Rh positive | None | Cannot lead a claim |
| Z6741 | Type O blood, Rh negative | None | Cannot lead a claim |
| Z6790 | Unspecified blood type, Rh positive | None | Cannot lead a claim |
| Z6791 | Unspecified blood type, Rh negative | None | Cannot lead a claim |
| Z67A1 | Duffy null | None | Cannot lead a claim |
| Z67A2 | Duffy a positive | None | Cannot lead a claim |
| Z67A3 | Duffy b positive | None | Cannot lead a claim |
| Z67A4 | Duffy a and b positive | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue