Z28.2Immunization not carried out because of patient decision for other and unspecified reason

Z28.2 is the ICD-10-CM diagnosis code for immunization not carried out because of patient decision for other and unspecified reason. It belongs to category Z28 (immunization not carried out and underimmunization status), block Z20-Z29 (persons with potential health hazards related to communicable diseases) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within Z28, choose Z28.2 (Immunization not carried out because of patient decision for other and unspecified reason) only when documentation doesn't support a more specific option: immunization not carried out because of contraindication (Z28.0), immunization not carried out because of patient decision for reasons of belief or group pressure (Z28.1), underimmunization status (Z28.3), immunization not carried out for other reason (Z28.8) and immunization not carried out for unspecified reason (Z28.9).

To report this condition, pick the subcode that matches the documentation: Z28.20 (reason), Z28.21 (refusal) and Z28.29 (reason).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.