Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes Z00-Z99 – Factors influencing health status and contact with health services (Z00-Z99) > 2024 ICD-10-CM Codes Z20-Z29 – Persons with potential health hazards related to communicable diseases (Z20-Z29) > 2024 ICD-10-CM Codes Z29 – Encounter for other prophylactic measures (Z29) > 2024 ICD-10-CM Codes Z29.1 – Encounter for prophylactic immunotherapy (Z29.1)