Unspecified chronic bronchitis
Notes: Chronic bronchitis NOS ; Chronic tracheitis ; Chronic tracheobronchitis ; 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) ; 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.-)