Section J40-J4A

Chronic lower respiratory diseases

Clinical Classification Guidelines

Excludes1

  • bronchitis due to chemicals, gases, fumes and vapors (J68.0)

Excludes2

  • cystic fibrosis (E84.-)

Subordinate Categories

Bronchitis, not specified as acute or chronic
J40
Simple and mucopurulent chronic bronchitis
J41
Unspecified chronic bronchitis
J42
Emphysema
J43
Other chronic obstructive pulmonary disease
J44
Chronic lung allograft dysfunction
J4A
Asthma
J45
Bronchiectasis
J47