Long COVID: Use ICD-10 Code U09.9
For a post COVID-19 condition, unspecified, like Long COVID, use code DX U09.9. Add other codes for conditions related to the COVID-19 infection, like R50.9 for fever.
For a current COVID-19 infection, use code DX U07.1. Don’t use code DX U09.9.
For a current COVID-19 infection and conditions from a previous COVID-19 infection, use code U09.9 with code DX U07.1. Add other codes for conditions related to the COVID-19 infection, like R06.02 for shortness of breath.
For more information, see pages 30-31 of ICD-10-CM Official Guidelines for Coding and Reporting: Fiscal Year 2022 (PDF).