• 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