Z28.21
Z28.21: Immunization not carried out because of patient refusal
Billable / specific codeICD-10-CMPOA exempt
Z28.21 is a billable, specific ICD-10-CM code for immunization not carried out because of patient refusal. It is valid for submission on a claim.
Check Z28.21 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
- Immunization›not done›because›patient refusal
Code history
Unchanged in every release from FY2024 to FY2027.