MCMCB Pro
Z67.A

Z67.ADuffy phenotype

Non-billable headerICD-10-CM

Z67.A is a non-billable header ICD-10-CM code for duffy phenotype. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

Z67.A does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Z67.A

4 child codes. Green means billable.

Related codes at this level

Codes that share Z67. If Z67.A is not quite right, the correct code is usually one of these.

Questions about Z67.A

Is Z67.A a billable ICD-10-CM code?
No. Z67.A is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z67.A sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Blood type (Z67).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.