Z67.A – Duffy phenotype
ICD-10-CM 2027 diagnosis code · Blood type (Z67)
ICD-10-CM code
Z67.A
- Code
Z67.A(claims format:Z67A)- Description
- Duffy phenotype
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z67 Blood type (Z67)
- Parent codes
- Z67
Billable codes under Z67.A
Z67.A is a header code and cannot be used on claims. Choose the most specific code:
- Z67.A1 – Duffy nullBillable
- Z67.A2 – Duffy a positiveBillable
- Z67.A3 – Duffy b positiveBillable
- Z67.A4 – Duffy a and b positiveBillable
Related codes in Z67
- Z67.1 – Type A bloodHeader
- Z67.2 – Type B bloodHeader
- Z67.3 – Type AB bloodHeader
- Z67.4 – Type O bloodHeader
- Z67.9 – Unspecified blood typeHeader
Frequently asked questions
What is ICD-10 code Z67.A?
Z67.A is the ICD-10-CM code for duffy phenotype, in the block Z67 (Blood type (Z67)).
Is Z67.A a billable code?
No. Z67.A is a header code with more specific child codes; report one of the billable codes listed above.
What category does Z67.A belong to?
It belongs to category Z67 – Blood type.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.