Marchiafava (-Bignami) disease or syndrome  341.8 | 
  Marchiafava-Micheli syndrome (paroxysmal nocturnal hemoglobinuria)  283.2 | 
  Marcus Gunn's syndrome (jaw-winking syndrome)  742.8 | 
  Marfan's  | 
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  Marginal  | 
   | 
  Marie's  | 
   | 
  Marie-Bamberger disease or syndrome (hypertrophic) (pulmonary) (secondary)  731.2 | 
   | 
  Marie-Charcôt-Tooth neuropathic atrophy, muscle  356.1 | 
  Marie-Strümpell arthritis or disease (ankylosing spondylitis)  720.0 | 
  Marihuana, marijuana  | 
   | 
  Marion's disease (bladder neck obstruction)  596.0 | 
   | 
  Mark  | 
   | 
  Maroteaux-Lamy syndrome (mucopolysaccharidosis VI)  277.5 | 
  Marriage license examination  V70.3 | 
  Marrow (bone)  | 
   | 
   | 
  Marsh's disease (exophthalmic goiter)  242.0 | 
  Marshall's (hidrotic) ectodermal dysplasia  757.31 | 
  Marsh fever (see also Malaria)  084.6 | 
   | 
  Martin-Albright syndrome (pseudohypoparathyroidism)  275.49 | 
  Martorell-Fabre syndrome (pulseless disease)  446.7 | 
  Masculinization, female, with adrenal hyperplasia  255.2 | 
  Masculinovoblastoma (M8670/0)  220 | 
   | 
   | 
  Mass  | 
   | 
  Massive - see condition  | 
   | 
   | 
  Mast cell  | 
   | 
  Masters-Allen syndrome  620.6 | 
  Mastitis (acute) (adolescent) (diffuse) (interstitial) (lobular) (nonpuerperal) (nonsuppurative) (parenchymatous) (phlegmonous) (simple) (subacute) (suppurative)  611.0 | 
   | 
  Mastocytoma (M9740/1)  238.5 | 
   | 
   | 
   | 
   | 
   | 
  Mastoid - see condition  | 
  Mastoidalgia (see also Otalgia)  388.70 | 
  Mastoiditis (coalescent) (hemorrhagic) (pneumococcal) (streptococcal) (suppurative)  383.9 | 
   | 
  Mastopathy, mastopathia  611.9 | 
   | 
   | 
   | 
  Maternal condition, affecting fetus or newborn  | 
   | 
  Maternity - see Delivery  | 
  Matheiu's disease (leptospiral jaundice)  100.0 | 
  Mauclaire's disease or osteochondrosis  732.3 | 
   | 
  Maxilla, maxillary - see condition  | 
  May (-Hegglin) anomaly or syndrome  288.2 | 
   | 
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