Z28 — ICD-10-CM Diagnosis Codes

• Z28 Immunization not carried out and underimmunization status
• Z28.0 Immunization not carried out because of contraindication
• Z28.01 Immunization not carried out because of acute illness of patient billable
• Z28.02 Immunization not carried out because of chronic illness or condition of patient billable
• Z28.03 Immunization not carried out because of immune compromised state of patient billable
• Z28.04 Immunization not carried out because of patient allergy to vaccine or component billable
• Z28.09 Immunization not carried out because of other contraindication billable
• Z28.1 Immunization not carried out because of patient decision for reasons of belief or group pressure billable
• 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 billable
• Z28.21 Immunization not carried out because of patient refusal billable
• Z28.29 Immunization not carried out because of patient decision for other reason billable
• Z28.3 Underimmunization status
• Z28.31 Underimmunization for COVID-19 status
• Z28.310 Unvaccinated for COVID-19 billable
• Z28.311 Partially vaccinated for COVID-19 billable
• Z28.39 Other underimmunization status billable
• Z28.8 Immunization not carried out for other reason
• Z28.81 Immunization not carried out due to patient having had the disease billable
• Z28.82 Immunization not carried out because of caregiver refusal billable
• Z28.83 Immunization not carried out due to unavailability of vaccine billable
• Z28.89 Immunization not carried out for other reason billable
• Z28.9 Immunization not carried out for unspecified reason billable