Z28.8 Immunization not carried out for other reasonNon-billable header with 4 child codes.
Z28.81 Immunization not carried out due to patient having had the diseaseZ28.82 Immunization not carried out because of caregiver refusalZ28.83 Immunization not carried out due to unavailability of vaccineZ28.89 Immunization not carried out for other reasonZ28.3 Underimmunization status ("immunization not carried out for other reason (Z28.8-)")Z71.85 Encounter for immunization safety counseling (", if applicable, immunization not carried out (Z28.-)")Z28.3 Underimmunization statusZ28.31 Underimmunization for COVID-19 statusZ28.310 Unvaccinated for COVID-19Z28.311 Partially vaccinated for COVID-19Z28.39 Other underimmunization statusZ28.8 Immunization not carried out for other reason (this code)Z28.81 Immunization not carried out due to patient having had the diseaseZ28.82 Immunization not carried out because of caregiver refusalZ28.83 Immunization not carried out due to unavailability of vaccineZ28.89 Immunization not carried out for other reasonZ28.9 Immunization not carried out for unspecified reason