- 270 Disorders of amino-acid transport and metabolism
- 271 Disorders of carbohydrate transport and metabolism
- 272 Disorders of lipoid metabolism
- 273 Disorders of plasma protein metabolism
- 274 Gout
- 275 Disorders of mineral metabolism
- 276 Disorders of fluid electrolyte and acid-base balance
- 277 Other and unspecified disorders of metabolism
- 278 Overweight, obesity and other hyperalimentation
- 279 Disorders involving the immune mechanism