ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 21  /  Z20-Z29  /  Z28
Z28 Immunization not carried out and underimmunization status
Includes vaccination not carried out
CodeAlso , if applicable, encounter for immunization safety counseling (Z71.85)
Z28.0 Immunization not carried out because of contraindication
Z28.01 Immunization not carried out because of acute illness of patient
nonPrimary Yes
Z28.02 Immunization not carried out because of chronic illness or condition of patient
nonPrimary Yes
Z28.03 Immunization not carried out because of immune compromised state of patient
nonPrimary Yes
Z28.04 Immunization not carried out because of patient allergy to vaccine or component
nonPrimary Yes
Z28.09 Immunization not carried out because of other contraindication
nonPrimary Yes
Z28.1 Immunization not carried out because of patient decision for reasons of belief or group pressure
Immunization not carried out because of religious belief
nonPrimary Yes
Z28.2 Immunization not carried out because of patient decision for other and unspecified reason
Z28.20 Immunization not carried out because of patient decision for unspecified reason
nonPrimary Yes
Z28.21 Immunization not carried out because of patient refusal
nonPrimary Yes
Z28.29 Immunization not carried out because of patient decision for other reason
nonPrimary Yes
Z28.3 Underimmunization status
UseAdditionalCode 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-)
nonPrimary Yes
Z28.31 Underimmunization for COVID-19 status
Notes These codes should not be used for individuals who are not eligible for the COVID-19 vaccines, as determined by the healthcare provider.
Z28.310 Unvaccinated for COVID-19
Z28.311 Partially vaccinated for COVID-19
Z28.39 Other underimmunization status
Delinquent immunization status
Lapsed immunization schedule status
Z28.8 Immunization not carried out for other reason
Z28.81 Immunization not carried out due to patient having had the disease
nonPrimary Yes
Z28.82 Immunization not carried out because of caregiver refusal
Immunization not carried out because of guardian refusal
Immunization not carried out because of parent refusal
Excludes1 immunization not carried out because of caregiver refusal because of religious belief (Z28.1)
nonPrimary Yes
Z28.83 Immunization not carried out due to unavailability of vaccine
Delay in delivery of vaccine
Lack of availability of vaccine
Manufacturer delay of vaccine
nonPrimary Yes
Z28.89 Immunization not carried out for other reason
nonPrimary Yes
Z28.9 Immunization not carried out for unspecified reason
nonPrimary Yes