Z28.9
Z28.9: Immunization not carried out for unspecified reason
Billable / specific codeICD-10-CMPOA exempt
Z28.9 is a billable, specific ICD-10-CM code for immunization not carried out for unspecified reason. It is valid for submission on a claim.
Check Z28.9 with the rest of the claim: free scrubberRisk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Delay, delayed›vaccination
- Immunization›not done(not carried out)
- Vaccination›delayed
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under Z28
- Z28.0Immunization not carried out because of contraindication
- Z28.1Immunization not carried out because of patient decision for reasons of belief or group pressure
- Z28.2Immunization not carried out because of patient decision for other and unspecified reason
- Z28.3Underimmunization status
- Z28.8Immunization not carried out for other reason