Posted in Business ICD-10 Adds Z Codes Author: Seymore Bones Published Date: January 14, 2022 Leave a Comment on ICD-10 Adds Z Codes Starting April 1, 2022 You will have new ICD-10-CM Z codes to report if you find the patient you are treating is partially vaccinated or unvaccinated for COVID-19. The changes include:New subcategory Z28.31 (Underimmunization for COVID-19 status), and under it, two new patient status codes:Z28.310 (Unvaccinated for COVID-19).Z28.311 (Partially vaccinated for COVID-19).Z29.39 (Other underimmunization status). For the full article, click. Author: Seymore Bones