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 […]