ICD-10-CM › J00-J99 › J20-J22 › J codes › J21

J21

Acute bronchiolitis

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

  • 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

What has happened to this code

Every change the publisher made, from 2012 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.

  1. FY2012 Added to the draft code set draft Acute bronchiolitis

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.

This code

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)