Z28.0 – Immunization not carried out because of contraindication
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to communicable diseases
- Code
Z28.0(claims format:Z280)- Description
- Immunization not carried out because of contraindication
- 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 Z28.0
Z28.0 is a header code and cannot be used on claims. Choose the most specific code:
- Z28.01 – Immunization not carried out because of acute illness of patientBillable
- Z28.02 – Immunization not carried out because of chronic illness or condition of patientBillable
- Z28.03 – Immunization not carried out because of immune compromised state of patientBillable
- Z28.04 – Immunization not carried out because of patient allergy to vaccine or componentBillable
- Z28.09 – Immunization not carried out because of other contraindicationBillable
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
- Z28.1 – 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
- Z28.8 – Immunization not carried out for other reasonHeader
- Z28.9 – Immunization not carried out for unspecified reasonBillable
Frequently asked questions
What is ICD-10 code Z28.0?
Z28.0 is the ICD-10-CM code for immunization not carried out because of contraindication, in the block Z20-Z29 (Persons with potential health hazards related to communicable diseases).
Is Z28.0 a billable code?
No. Z28.0 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Z28.0 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.