2025
ICD-10-CM
Diagnosis
Code

Z23 Encounter for immunization

  • Billable
  • POA Exempt
  • 2016–2025

Z23 is a billable/specific and POA-exempt diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Encounter for immunization.

Notes

  • Procedure codes are required to identify the types of immunizations given

Code first

  • Any routine childhood examination

Code also

  • If applicable, encounter for immunization safety counseling (Z71.85)

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    Code changed

    • Code also

        • , if applicable, encounter for immunization safety counseling (Z71.85)
  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    No changes

  10. 2016

    New code