Z23 is a billable/specific and POA-exempt diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Encounter for immunization.
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Z23 is a billable/specific and POA-exempt diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Encounter for immunization.
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Procedure codes are required to identify the types of immunizations given
Any routine childhood examination
If applicable, encounter for immunization safety counseling (Z71.85)
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