Until then, the CDC has published the following interim guidance on coding for this condition:

  • For a diagnosis of COVID-19, report the code for the patient condition that is related to the COVID-19 (e.g., J12.89, “Other viral pneumonia”) and B97.29, “Other coronavirus as the cause of diseases classified elsewhere.”

The following guidance applies before and after the diagnosis code takes effect:

  • For suspected COVID-19, not confirmed or ruled out at the encounter, report codes for the presenting signs and symptoms. Do not report a code for coronavirus when this diagnosis is not stated in the medical record.
  • For known exposure to COVID-19 (without diagnosis of COVID-19), report Z20.828, “Contact with and (suspected) exposure to other viral communicable diseases.”
  • For suspected exposure to COVID-19 that is ruled out after evaluation, report Z03.818, “Encounter for observation for suspected exposure to other biological agents ruled out

https://www.cdc.gov/nchs/data/icd/Announcement-New-ICD-code-for-coronavirus-3-18-2020.pdf