ICD-10-CM › J00-J99 › J20-J22 › J21 Acute bronchiolitis › J21.0
Acute bronchiolitis due to respiratory syncytial virus
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Acute bronchiolitis due to respiratory syncytial virus
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from J21 Acute bronchiolitis
Excludes2 - not included here
- respiratory bronchiolitis interstitial lung disease (J84.115)
Includes
- acute bronchiolitis with bronchospasm
Inherited from the J20-J22 section Other acute lower respiratory infections (J20-J22)
Excludes2 - not included here
- chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Virus, viral > infection
- Inflammation, inflamed, inflammatory > respiratory, upper
- Infection, infected, infective > respiratory NEC > syncytial virus
- Respiratory > syncytial virus, as cause of disease classified elsewhere
- Virus, viral > as cause of disease classified elsewhere > respiratory syncytial virus
- Infection, infected, infective > virus, viral NOS > as cause of disease classified elsewhere > respiratory syncytial
- Bronchiolitis > due to > respiratory syncytial virus
- Virus, viral > respiratory syncytial > bronchiolitis
- Infection, infected, infective > virus, viral NOS > respiratory syncytial > bronchiolitis
Codes in the same group
| Code | Description | Status |
|---|---|---|
| J21.1 | Acute bronchiolitis due to human metapneumovirus | Valid |
| J21.8 | Acute bronchiolitis due to other specified organisms | Valid |
| J21.9 | Acute bronchiolitis, unspecified | Valid |