• Mediastinitis (acute) (chronic) 519.2
  • Mediastinopericarditis (see also Pericarditis) 423.9
  • Mediastinum, mediastinal - see condition
  • Medical services provided for - see Health, services provided because (of)
  • Medicine poisoning (by overdose) (wrong substance given or taken in error) 977.9
  • Medin's disease (poliomyelitis) 045.9
  • Mediterranean
  • Medulla - see condition
  • Medullary
  • Medullated fibers
  • Medulloblastoma (M9470/3)
  • Medulloepithelioma (M9501/3) - see also Neoplasm, by site, malignant
  • Medullomyoblastoma (M9472/3)
  • Meekeren-Ehlers-Danlos syndrome 756.83
  • Megacaryocytic - see condition
  • Megacolon (acquired) (functional) (not Hirschsprung's disease) 564.7
  • Megaduodenum 537.3
  • Megaesophagus (functional) 530.0
  • Megakaryocytic - see condition
  • Megalencephaly 742.4
  • Megalerythema (epidermicum) (infectiosum) 057.0
  • Megalia, cutis et ossium 757.39