Wiki COVID-19 Antibody Testing Dx

Coding guidance: ICD-10-CM
COVID-19 attacks the respiratory system; therefore, suspicion of the disease typically will accompany respiratory conditions. A confirmation of COVID-19 will therefore be linked to a specific respiratory condition.
  • Pneumonia: For a pneumonia case confirmed as due to the 2019 novel coronavirus (COVID-19), assign codes J12.89, Other viral pneumonia, and B97.29, Other coronavirus as the cause of diseases classified elsewhere.
  • Acute bronchitis: For a patient with acute bronchitis confirmed as due to COVID-19, assign codes J20.8, Acute bronchitis due to other specified organisms, and B97.29. If the bronchitis is not specified as acute, due to COVID-19, report code J40, Bronchitis, not specified as acute or chronic, along with code B97.29.
  • Lower respiratory infection: If the COVID-19 is documented as being associated with a lower respiratory infection, not otherwise specified (NOS), or an acute respiratory infection, NOS, report with code J22, Unspecified acute lower respiratory infection, with code B97.29. If the COVID-19 is documented as being associated with a respiratory infection, NOS, it would be appropriate to assign code J98.8, Other specified respiratory disorders, with code B97.29.
  • Acute respiratory distress syndrome (ARDS): ARDS may develop in conjunction with COVID-19. Cases with ARDS due to COVID-19 should be assigned the codes J80, Acute respiratory distress syndrome, and B97.29.
  • Exposure to COVID-19: For cases where there is possible exposure to COVID-19, but the disease is ruled out, report code Z03.818, Encounter for observation for suspected exposure to other biological agents ruled out. For cases where there is an actual exposure to someone who is confirmed to have COVID-19, report code Z20.828, Contact with and (suspected) exposure to other viral communicable diseases. This code is not necessary if the exposed patient is confirmed to have COVID-19.
  • Signs and symptoms: For patients presenting with any signs/symptoms and where a definitive diagnosis has not been established, assign the appropriate code(s) for each of the presenting signs and symptoms such as: Cough (R05); Shortness of breath (R06.02) or Fever unspecified (R50.9).
Do not report “suspected” cases of COVID-19 with B97.29. In addition, diagnosis code B34.2, Coronavirus infection, unspecified, typically is not appropriate.
 
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