ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 10  /  J20-J22  /  J21
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
Acute bronchiolitis due to RSV
J21.1 Acute bronchiolitis due to human metapneumovirus
J21.8 Acute bronchiolitis due to other specified organisms
J21.9 Acute bronchiolitis, unspecified
Bronchiolitis (acute)
Excludes1 chronic bronchiolitis (J44.-)