ICD-10-CM Current in FY 2027

Z28.3

Underimmunization status

Hierarchy

Where Z28.3 sits in the official hierarchy. Each level is the code it is classified under.

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Includes

vaccination not carried out

Inherited from Z28 — Immunization not carried out and underimmunization status

Use Additional Code

code, if applicable, to identify:

Use Additional Code

immunization not carried out because of contraindication ( Z28.0- )

Use Additional Code

immunization not carried out because of patient decision for other and unspecified reason ( Z28.2- )

Use Additional Code

immunization not carried out because of patient decision for reasons of belief or group pressure ( Z28.1 )

Use Additional Code

immunization not carried out for other reason ( Z28.8- )

Code Also

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

Inherited from Z28 — Immunization not carried out and underimmunization status

2 codes under Z28.3

How Z28.3 appears in each release imported from the official files, newest first.

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

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