- Chronic J42

-- With

--- Airways Obstruction J44.9

--- Tracheitis J42

-- Asthmatic J44.9

-- Catarrhal J41.0

-- Chemical J68.4

-- Due To

--- Chemicals, Gases, Fumes Or Vapors J68.4

--- Radiation J70.1

--- Tobacco Smoking J41.0

-- Emphysematous J44.9

-- Mucopurulent J41.1

-- Non-obstructive J41.0

-- Obliterans J44.9

-- Obstructive J44.9

-- Purulent J41.1

-- Simple J41.0