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  • Angel Callaway, CPC, CPB

COVID-19 Vaccine Status Codes

Starting April 1st, 2022 three new ICD-10-CM codes go into effect for reporting COVID-19 vaccine status allowing clinicians to report a patient's COVID-19 vaccine status more accurately.

Three new codes have been added and one deleted or moved to a parent code:


Z28.3 Underimmunization status

  • Use additional

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 reasons (Z28.8-)

Z28.31 Underimmunization for COVID-19 status

Note: 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

Deliquent immunization status

Lapsed immunization status

The full changes and updates can be downloaded for review:

AMA has released the 2022 Errata and Technical Correction, most of the changes are grammatical but a few code descriptions and parenthetical notes have been changed. The full errata can be downloaded here

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