Z23 - Encounter for immunization
Code
Z23 - Encounter for immunization
[Billable] [POA Exempt]
[Billable] [POA Exempt]
Code First
- any routine childhood examination
Code Also
- , if applicable, encounter for immunization safety counseling (Z71.85)
Notes
- procedure codes are required to identify the types of immunizations given
Code Tree
Z00-Z99 - Factors influencing health status and contact with health services
- Z20-Z29 - Persons with potential health hazards related to communicable diseases
- Z20 - Contact with and (suspected) exposure to communicable diseases
- Z21 - Asymptomatic human immunodeficiency virus [HIV] infection status
- Z22 - Carrier of infectious disease
- Z23 - Encounter for immunization
- Z28 - Immunization not carried out and underimmunization status
- Z29 - Encounter for other prophylactic measures
Citation
"Z23 - Encounter for Immunization." ICD-10-CM, 10th ed., Centers for Medicare and Medicaid Services and the National Center for Health Statistics, 2026. www.unboundmedicine.com/icd/view/ICD-10-CM/871387/all/Z23___Encounter_for_immunization.
Z23 - Encounter for immunization. ICD-10-CM. Centers for Medicare and Medicaid Services and the National Center for Health Statistics; 2026. https://www.unboundmedicine.com/icd/view/ICD-10-CM/871387/all/Z23___Encounter_for_immunization. Accessed May 15, 2026.
Z23 - Encounter for immunization. (2026). In ICD-10-CM (10th ed.). Centers for Medicare and Medicaid Services and the National Center for Health Statistics. https://www.unboundmedicine.com/icd/view/ICD-10-CM/871387/all/Z23___Encounter_for_immunization
Z23 - Encounter for Immunization [Internet]. In: ICD-10-CM. Centers for Medicare and Medicaid Services and the National Center for Health Statistics; 2026. [cited 2026 May 15]. Available from: https://www.unboundmedicine.com/icd/view/ICD-10-CM/871387/all/Z23___Encounter_for_immunization.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Z23 - Encounter for immunization
ID - 871387
BT - ICD-10-CM
UR - https://www.unboundmedicine.com/icd/view/ICD-10-CM/871387/all/Z23___Encounter_for_immunization
PB - Centers for Medicare and Medicaid Services and the National Center for Health Statistics
ET - 10
DB - ICD-10-CM
DP - Unbound Medicine
ER -

ICD-10-CM

