• Melkersson (-Rosenthal) syndrome 351.8
  • Mellitus, diabetes - see Diabetes
  • Melorheostosis (bone) (leri) 733.99
  • Meloschisis 744.83
  • Melotia 744.29
  • Membrana
  • Membranacea placenta - see Placenta, abnormal
  • Membranaceous uterus 621.8
  • Membrane, membranous - see also condition
  • Membranitis, fetal 658.4
  • Memory disturbance, loss or lack (see also Amnesia) 780.93
  • Menadione (vitamin K) deficiency 269.0
  • Menarche, precocious 259.1
  • Mendacity, pathologic 301.7
  • Mende's syndrome (ptosis-epicanthus) 270.2
  • Mendelson's syndrome (resulting from a procedure) 997.3
  • Ménétrier's disease or syndrome (hypertrophic gastritis) 535.2
  • Ménière's disease, syndrome, or vertigo 386.00
  • Meninges, meningeal - see condition
  • Meningioma (M9530/0) - see also Neoplasm, meninges, benign
  • Meningiomatosis (diffuse) (M9530/1) 237.6
  • Meningism (see also Meningismus) 781.6