- 500 Coal workers' pneumoconiosis
- 501 Asbestosis
- 502 Pneumoconiosis due to other silica or silicates
- 503 Pneumoconiosis due to other inorganic dust
- 504 Pneumonopathy due to inhalation of other dust
- 505 Pneumoconiosis unspecified
- 506 rEspiratory conditions due to chemical fumes and vapors
- 507 Pneumonitis due to solids and liquids
- 508 rEspiratory conditions due to other and unspecified external agents
