• Misdirection
  • Mismanagement, feeding 783.3
  • Misplaced, misplacement
  • Missed
  • Misshapen reconstructed breast 612.0
  • Missing - see also Absence
  • Misuse of drugs NEC (see also Abuse, drug, nondependent) 305.9
  • Mitchell's disease (erythromelalgia) 443.82
  • Mite(s)
  • Mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS syndrome) 277.87
  • Mitochondrial neurogastrointestinal encephalopathy syndrome (MNGIE) 277.87
  • Mitral - see condition
  • Mittelschmerz 625.2
  • Mixed - see condition
  • Mljet disease (mal de Meleda) 757.39
  • Mobile, mobility
  • Mobitz heart block (atrioventricular) 426.10
  • Möbius'
  • Moeller (-Barlow) disease (infantile scurvy) 267
  • Mohr's syndrome (types I and II) 759.89
  • Mola destruens (M9100/1) 236.1
  • Molar pregnancy 631.8