Acute upper respiratory infections

Influenza and pneumonia

Other acute lower respiratory infections

Other diseases of upper respiratory tract

Chronic lower respiratory diseases

Lung diseases due to external agents

Other respiratory diseases principally affecting the interstitium

Suppurative and necrotic conditions of the lower respiratory tract

Other diseases of the pleura

Intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified

Other diseases of the respiratory system