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New ICD-10 coding for Post COVID-19 condition, unspecified (U09.9)


Providers should list U09.9 secondary to specific codes for ongoing conditions after a COVID-19 infection, such as shortness of breath (R06.02), fatigue (R53), myalgia (M79.1), multisystem inflammatory syndrome (M35.81), and others, according to new tabular instructions for the code.


This guidance went into effect on October 1, 2021.


Correct coding matters


Please code correctly and caringly so we can understand the real-world evidence related to COVID-19 and its complicated sequelae.


Long COVID-19 defined


  • World Health Organization (WHO):
    Long COVID-19 starts three months after the original bout of illness or positive test results.1
  • Centers for Disease Control and Prevention (CDC):
    Long COVID-19 — or post-COVID-19 conditions — is a wide range of new, returning or ongoing health problems people may experience more than four weeks after being first infected with SARS-CoV-2.2
  • What to know


    Use the new ICD-10 coding for “Long COVID,” or post-acute sequelae of COVID-19. This is a critical step for long-term patient care as well as for tracking and research purposes.


1World Health Organization (WHO). A clinical case definition of post COVID-19 condition by a Delphi consensus. October 6, 2021. Accessed June 16, 2022.


2Centers for Disease Control and Prevention. Long COVID or post-COVID conditions. May 5, 2022. Accessed June 16, 2022.

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