Table 1.
Diagnostic codes for RSV, asthma, and comorbidities
| Condition | ICD‐10 code | ICD‐10 code definition |
|---|---|---|
| RSV | J12.1 | RSV pneumonia |
| J20.5 | Acute bronchitis due to RSV | |
| J21.0 | Acute bronchiolitis due to RSV | |
| Asthma | J45 | Asthma |
| J46 | Status asthmaticus | |
| Comorbidities | Q20‐Q26 | Congenital heart disease or pulmonary hypertension |
| P271, Q30‐Q34 | Congenital lung disease or bronchopulmonary dysplasia | |
| Q90 | Down syndrome | |
| E84 | Cystic fibrosis | |
| G80 | Cerebral palsy | |
| G71 | Neuromuscular disorders |
Abbreviations: ICD‐10, International Classification of Diseases 10th revision; RSV, respiratory syncytial virus.