Is Z29.1 a billable code?
No. Z29.1 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z29.1: Encounter for prophylactic immunotherapy
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z29.1 groups related diagnoses under encounter for prophylactic immunotherapy. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z29.1
- Z29.11Encounter for prophylactic immunotherapy for respiratory syncytial virus (RSV)
- Z29.12Encounter for prophylactic antivenin
- Z29.13Encounter for prophylactic Rho(D) immune globulin
- Z29.14Encounter for prophylactic rabies immune globulin
Other codes in Z29 Encounter for other prophylactic measures
Z29.1 questions
What does Z29.1 mean?
Z29.1 is the ICD-10-CM code for Encounter for prophylactic immunotherapy. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.