J40. Bronchitis, not specified as acute or chronic
Note: Bronchitis not specified as acute or chronic in those under 15 years of age can be assumed to be of acute nature and should be classified to J20.-
Bronchitis:
. NOS
. catarrhal
. with tracheitis NOS
Tracheobronchitis NOS
Excludes: bronchitis:
. allergic NOS (J45.0)
. asthmatic NOS (J45.9)
. chemical (acute) (J68.0)