Z28.20
BillableImmunization not carried out because of patient decision for unspecified reason
Z28.20 is the ICD-10-CM code for Immunization not carried out because of patient decision for unspecified reason. It is a billable, specific code valid for reimbursement.
Z00-Z99 Factors influencing health status and contact with health services
No additional coding notes for this code.
Frequently asked questions
- What is ICD-10 code Z28.20?
- Z28.20 is the ICD-10-CM code for "Immunization not carried out because of patient decision for unspecified reason". It falls under Z00-Z99 Factors influencing health status and contact with health services.
- Is Z28.20 a billable code?
- Yes — Z28.20 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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