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Z23 Encounter for immunization

CategoryCODABLE

Z23

Encounter for immunization

NOTE

procedure codes are required to identify the types of immunizations given

CODING RULE

Code first: any routine childhood examination
Code also: , if applicable, encounter for immunization safety counseling (Z71.85)

Chapter: XXI · Factors influencing health status and contact with health services
Section: Z20-Z29
Valid from

Source

CMS ICD-10-CM Tabular List, edition FY2026.