2023 ICD-10-CM Index
'U' Terms
Index Terms Starting With 'U' (Underimmunization status)

Index Terms Starting With 'U' (Underimmunization status)

Underimmunization status Z28.39
ICD-10-CM Diagnosis Code Z28.39
Other underimmunization status
Applicable To
Delinquent immunization status
Lapsed immunization schedule status
- COVID-19 Z28.31-
  ICD-10-CM Diagnosis Code Z28.31-
  Underimmunization for COVID-19 status
  2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  Note
  These codes should not be used for individuals who are not eligible for the COVID-19 vaccines, as determined by the healthcare provider.
  - partially vaccinated Z28.311
    (for)
    ICD-10-CM Diagnosis Code Z28.311
    Partially vaccinated for COVID-19
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  - unvaccinated Z28.310
    (for)
    ICD-10-CM Diagnosis Code Z28.310
    Unvaccinated for COVID-19
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt