J21

Acute bronchiolitis

Non-billable header

J21 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • acute bronchiolitis with bronchospasm
  • Note: When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)
  • respiratory bronchiolitis interstitial lung disease (J84.115)

Use additional code

Add a code to identify the following, if applicable.

  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

More specific codes J21

  • J21.0Acute bronchiolitis due to respiratory syncytial virusBillable
  • J21.1Acute bronchiolitis due to human metapneumovirusBillable
  • J21.8Acute bronchiolitis due to other specified organismsBillable
  • J21.9Acute bronchiolitis, unspecifiedBillable

Related codes

  • J20Acute bronchitisHeader
  • J22Unspecified acute lower respiratory infectionBillable

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