You’ll soon have new ICD-10-CM Z codes to report when treating patients who are partially vaccinated or unvaccinated for COVID-19. Unvaccinated patients.
This new code set, effective April 1, 2022, includes four additions under Chapter 21 (Factors influencing health status and contact with health services). The codes were added to better track those who aren’t fully vaccinated and who require medical attention.
The added Z codes are:
- New subcategory Z28.31: Underimmunized for COVID-19 status
- Z28.310: Unvaccinated for COVID-19
- Z28.311: Partially vaccinated for COVID-19
- Z29.39: Other underimmunized status
Use code Z28.310 for patients who have not received at least one dose of any COVID-19 vaccine. For those patients who have received at least one dose of a multi-dose regimen (such as Pfizer or Moderna) but have not received the full set of doses required to meet the CDC definition of “fully vaccinated,” use code Z28.311.
Patients who are delayed or lapsed in getting other non-COVID vaccines are considered “underimmunized” and you should report code Z29.39. Unvaccinated patients.
These codes are not to be reported for patients who aren’t eligible to receive a COVID-19 vaccine.
Staying on top of the latest changes to patient care and government regulations during the COVID-19 pandemic isn’t easy. Get the latest guidance on complying with the CMS vaccine mandate in Healthcare Training Leader’s upcoming online training, CMS Staff Vaccination Mandate: Cut Through Confusion & Comply. In this 60-minute training session, healthcare attorney Bryan Meek, Esq., gives you the step-by-step instructions you need to keep your practice compliant with the law. Register for this training today!
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