| 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 | Intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified |
| J96-J99 | Other diseases of the respiratory system |
