- 280 Iron deficiency anemias
- 281 Other deficiency anemias
- 282 Hereditary hemolytic anemias
- 283 Acquired hemolytic anemias
- 284 Aplastic anemia
- 285 Other and unspecified anemias
- 286 Coagulation defects
- 287 Purpura and other hemorrhagic conditions
- 288 Diseases of white blood cells
- 289 Other diseases of blood and blood-forming organs
