Z29.1 – Encounter for prophylactic immunotherapy
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to communicable diseases
- Code
Z29.1(claims format:Z291)- Description
- Encounter for prophylactic immunotherapy
- 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
- Z20-Z29 Persons with potential health hazards related to communicable diseases
- Parent codes
- Z29
Billable codes under Z29.1
Z29.1 is a header code and cannot be used on claims. Choose the most specific code:
Notes for Z29.1
- Encounter for administration of immunoglobulin
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z29 – Encounter for other prophylactic measures
Related codes in Z29
Frequently asked questions
What is ICD-10 code Z29.1?
Z29.1 is the ICD-10-CM code for encounter for prophylactic immunotherapy, in the block Z20-Z29 (Persons with potential health hazards related to communicable diseases).
Is Z29.1 a billable code?
No. Z29.1 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Z29.1 belong to?
It belongs to category Z29 – Encounter for other prophylactic measures.
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.