Z28 is the ICD-10 code for Immunization not carried out. It is a three-character category divided into 5 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block Z20–Z29 (Persons with potential health hazards related to communicable diseases) in Chapter XXI, Factors influencing health status and contact with health services.
- Code type
- Category (3 characters)
- Chapter
- XXI · Z00–Z99
- Classification
- WHO ICD-10, 2019 version
Subcodes of Z28
- Z28.0Immunization not carried out because of contraindication
- Z28.1Immunization not carried out because of patient's decision for reasons of belief or group pressure
- Z28.2Immunization not carried out because of patient's decision for other and unspecified reasons
- Z28.8Immunization not carried out for other reasons
- Z28.9Immunization not carried out for unspecified reason
Z28 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
Z28Rokotuksen tekemättä jättäminen
Z28Nicht durchgeführte Impfung [Immunisierung]
Z28Vaccination non faite
Z28immunisatie niet uitgevoerd
Listed through more specific codes:
- Z28.39Other underimmunization status
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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