J42 Unspecified chronic bronchitis

Chronic bronchitis NOS
Chronic tracheitis
Chronic tracheobronchitis

Excludes1: bronchiolitis obliterans and bronchiolitis obliterans syndrome (J44.81)
chronic asthmatic bronchitis (J44.-)
chronic bronchitis with airways obstruction (J44.-)
chronic emphysematous bronchitis (J44.-)
chronic obstructive pulmonary disease NOS (J44.9)
simple and mucopurulent chronic bronchitis (J41.-)

Use additional code: code 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)