ICD-10-CM › Z00-Z99 › Z20-Z29 › Z28.3 Underimmunization status › Z28.39
Z28.39
Other underimmunization status
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2022 to now.
- April 2022 Added to the code set Other underimmunization status
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from Z28 Immunization not carried out and underimmunization status
Code also
- , if applicable, encounter for immunization safety counseling (Z71.85)
Includes
- vaccination not carried out
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Inoculation
- Unimmunized
- Immunization
- Unvaccinated
- Need > vaccination
- Postsurgery status
- Need > immunization
- Vaccination > partial
- Immunization > partial
- Vaccination > not done
- Immunization > not done
- Underimmunization status
- Status > underimmunization
- Delinquent immunization status
- Status > delinquent immunization
- Lapsed immunization schedule status
- Status > lapsed immunization schedule
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Z28.31 | Underimmunization for COVID-19 status | Not billable |