Instruction Source: J21.9
Acute bronchiolitis, unspecified
Excludes 1 (Mutually Exclusive)
- chronic bronchiolitis (J44.89)
Instruction Source: J21
Acute bronchiolitis
Excludes 2 (Not Included Here)
- respiratory bronchiolitis interstitial lung disease (J84.115)
Inclusion Terms
- acute bronchiolitis with bronchospasm
Instruction Source: J20-J22
Other acute lower respiratory infections (J20-J22)
Excludes 2 (Not Included Here)
- chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)
Instruction Source: J00-J99
Diseases of the respiratory system
Excludes 2 (Not Included Here)
- 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)
Clinical Notes
- 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).