J00-J99: Diseases of the respiratory system

Excludes

Certain conditions originating in the perinatal period (P04-P96)
Certain infectious and parasitic diseases (A00-B99)
Complications of pregnancy, childbirth and the puerperium (O00-O9A)
Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Endocrine, nutritional and metabolic diseases (E00-E88)
Injury, poisoning and certain other consequences of external causes (S00-T88)
Neoplasms (C00-D49)
Smoke inhalation (T59.81-)
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

J00-J06	Acute upper respiratory infections
J09-J18	Influenza and pneumonia
J20-J22	Other acute lower respiratory infections
J30-J39	Other diseases of upper respiratory tract
J40-J47	Chronic lower respiratory diseases
J60-J70	Lung diseases due to external agents
J80-J84	Other respiratory diseases principally affecting the interstitium
J85-J86	Suppurative and necrotic conditions of the lower respiratory tract
J90-J94	Other diseases of the pleura
J95-J95	Intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified
J96-J99	Other diseases of the respiratory system