ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 23, 2018

See: Acute bronchiolitis

J21 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Acute bronchiolitis
  • acute bronchiolitis with bronchospasm
  • respiratory bronchiolitis interstitial lung disease (J84.115)

More specific codes for Acute bronchiolitis

  • 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
See also ICD 10 code for
Back to J21
See the ICD-10-CM Coding Guidelines.

Questions related to J21 Acute bronchiolitis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.