Table E2.
Diagnosis codes used in the study analyses
| Characteristic | CPT/ICD/LOINC codes |
|---|---|
| CABG | CPT: 1006207 (Combined arterial-venous grafting for coronary bypass) CPT: 1006199 (Venous grafting only for coronary artery bypass) CPT: 1006216 (Arterial grafting for coronary artery bypass) CPT: 0210-0213 (Coronary artery bypass) |
| COVID-19 diagnosis | U07.1 (ICD-10 COVID-19)—Lab confirmed COVID-19 94309-2 (LOINC: SARS-CoV-2 [COVID-19] RNA [Presence] in unspecified specimen by NAA with probe detection) [Positive] 94315-9 (SARS-related coronavirus E gene [Presence] in unspecified specimen by NAA with probe detection) [Positive] 94316-7 (SARS-CoV-2 (COVID-19) N gene [Presence] in unspecified specimen by NAA with probe detection) [Positive] 94500-6 (SARS-CoV-2 (COVID-19) RNA [Presence] in respiratory specimen by NAA with probe detection) [Positive] 94533-7 (SARS-CoV-2 (COVID-19) N gene [Presence] in respiratory specimen by NAA with probe detection) [Positive] 94534-5 (SARS-CoV-2 (COVID-19) RdRp gene [Presence] in respiratory specimen by NAA with probe detection) [Positive] 94502-2 (SARS-related coronavirus RNA [Presence] in respiratory specimen by NAA with probe detection) [Positive] 94559-2 (SARS-CoV-2 (COVID-19) ORF1ab region [Presence] in respiratory specimen by NAA with probe detection) [Positive] 41458-1 (SARS coronavirus RNA [Presence] in unspecified specimen by NAA with probe detection) [Positive] |
| Mortality | “Deceased” (known deceased documented) |
| Mechanical ventilation | 31500 (CPT: Intubation, endotracheal, emergency procedure) 5A1945Z (ICD-10: Respiratory ventilation, 24-96 consecutive hours) 5A1955Z (ICD-10: Respiratory ventilation, greater than 96 consecutive hours) 0BH17EZ (ICD-10: Insertion of endotracheal airway into trachea, via natural or artificial opening) 0BH18EZ (ICD-10: Insertion of endotracheal airway into trachea, via natural or artificial opening endoscopic) 1022227 (CPT: ECMO/ECLS provided by physician) 39.65 (ICD-9: Extracorporeal membrane oxygenation [ECMO]) |
| Stroke | ICD-10: I60-I69 |
| Acute kidney injury | ICD-10: N17 |
| ARDS | ICD-10: J80 |
| Alcohol abuse | ICD-10: F10 |
| Asthma | ICD-10: J45 |
| COPD | ICD-10: J44.9 |
| Chronic kidney disease | ICD-10: N18 |
| Diabetes mellitus | ICD-10: E08-E13 |
| Heart failure | ICD-10: I50 |
| Hypertensive disease | ICD-10: I10-I16 |
| Ischemic heart disease | ICD-10: I20-I25 |
| Nicotine dependence | ICD-10: F17 |
| Neoplasm | ICD-10: C00-D49 |
The individual codes chosen for defining the study population and for the definition of study outcomes are described in the table. CPT, Current Procedural Terminology; ICD, International Classification of Diseases; LOINC, Logical Observation Identifiers Names and Codes; CABG, coronary artery bypass grafting; COVID-19, coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; NAA, nucleic acid amplification; ECMO, extracorporeal membrane oxygenation; ECLS, extracorporeal life support; ARDS, acute respiratory distress syndrome; COPD, chronic obstructive pulmonary disease.