And here...
https://www.aapc.com/codes/icd-10-codes/Z28.310
They’re breaking down why refuseniks are unvaxxed.
Given this is Deep State doing it, no, there’s no good reason for it.
Holy crap, from that last link...
Unvaccinated for COVID-19
Z28.3
Use additional code, if applicable, to identify:
immunization not carried out because of contraindication (Z28.0-)
immunization not carried out because of patient decision for other and unspecified reason (Z28.2-)
immunization not carried out because of patient decision for reasons of belief or group pressure (Z28.1)
immunization not carried out for other reason (Z28.8-)
Z28
Includes: vaccination not carried out
Code also: , if applicable, encounter for immunization safety counseling (Z71.85)