Z28.3Underimmunization status

ICD-10-CM category (non-billable header) code — part of Persons with potential health hazards related to communicable diseases (Z20-Z29)

Code Details

Billable	No — use a more specific child code
Chapter	Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)
Section	Persons with potential health hazards related to communicable diseases (Z20-Z29)
Parent code	Z28 — Immunization not carried out and underimmunization status

code, if applicable, to identify:
immunization not carried out because of contraindication (Z28.0-)
immunization not carried out because of patient decision for other and unspecified reason (Z28.2-)
immunization not carried out because of patient decision for reasons of belief or group pressure (Z28.1)
immunization not carried out for other reason (Z28.8-)

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