J21: Acute bronchiolitis includes acute bronchiolitis with bronchospasm excludes2 respiratory bronchiolitis interstitial lung disease (J84.115) |
| J21.0: Acute bronchiolitis due to respiratory syncytial virus |
| J21.1: Acute bronchiolitis due to human metapneumovirus |
| J21.8: Acute bronchiolitis due to other specified organisms |
| J21.9: Acute bronchiolitis, unspecified |