Z28.8 – Immunization not carried out for other reason
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to communicable diseases
- Code
Z28.8(claims format:Z288)- Description
- Immunization not carried out for other reason
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z20-Z29 Persons with potential health hazards related to communicable diseases
- Parent codes
- Z28
Billable codes under Z28.8
Z28.8 is a header code and cannot be used on claims. Choose the most specific code:
- Z28.81 – Immunization not carried out due to patient having had the diseaseBillable
- Z28.82 – Immunization not carried out because of caregiver refusalBillable
- Z28.83 – Immunization not carried out due to unavailability of vaccineBillable
- Z28.89 – Immunization not carried out for other reasonBillable
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z28 – Immunization not carried out and underimmunization status
- vaccination not carried out
- , if applicable, encounter for immunization safety counseling (Z71.85)
Related codes in Z28
- Z28.0 – Immunization not carried out because of contraindicationHeader
- Z28.1 – Immunization not carried out because of patient decision for reasons of belief or group pressureBillable
- Z28.2 – Immunization not carried out because of patient decision for other and unspecified reasonHeader
- Z28.3 – Underimmunization statusHeader
- Z28.9 – Immunization not carried out for unspecified reasonBillable
Frequently asked questions
What is ICD-10 code Z28.8?
Z28.8 is the ICD-10-CM code for immunization not carried out for other reason, in the block Z20-Z29 (Persons with potential health hazards related to communicable diseases).
Is Z28.8 a billable code?
No. Z28.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Z28.8 belong to?
It belongs to category Z28 – Immunization not carried out and underimmunization status.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.