Table 5.

Coronavirus disease 2019 (COVID-19) Severity Categorization

Category	Description
Asymptomatic	Individuals who test positive for SARS-CoV-2 using a virologic test (i.e., a nucleic acid amplification test [NAAT] or an antigen test) but who have no symptoms that are consistent with COVID-19.
Mild	At least one of the following symptoms: fever, fatigue, headache, cough, chills, muscle aches, chest pain, sore throat, loss of smell/taste, N/V/D, congestion, or runny nose Do not have shortness of breath or difficulty breathing. Managed in an ambulatory setting or at home through telemedicine or telephone visits.
Moderate	Shortness of breath and/or evidence of lower respiratory disease during clinical assessment or imaging or found to have SpO2 ≥94% in room air at sea level.
Severe	SpO2 < 93% in room air and/or a respiratory rate > 30 breaths/min and/or HR > 100 BPM or self-endorsed tachycardia and/or acute respiratory distress syndrome; septic shock; cardiac dysfunction; an exaggerated inflammatory response in addition to pulmonary disease; severe illness causing cardiac, hepatic, renal, central nervous system, or thrombotic disease; and/or hospital admission, supplemental oxygen use, ICU admission, or death from COVID-19

COVID-19, coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; ICU, intensive care unit; HR, heart rate; BPM, beats per minute; N/V/D, Nausea/Vomiting/Diarrhea