Gastrocarcinoma (M8010/3)  151.9 | 
  Gastrocolic - see condition  | 
  Gastrocolitis - see Enteritis  | 
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  Gastroduodenitis (see also Gastritis)  535.5 | 
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  Gastroenteritis (acute) (catarrhal) (congestive) (hemorrhagic) (noninfectious) (see also Enteritis)  558.9 | 
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  Gastroenterocolitis - see Enteritis  | 
  Gastroenteropathy, protein-losing  579.8 | 
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  Gastroesophageal laceration-hemorrhage syndrome  530.7 | 
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  Gastrohepatitis (see also Gastritis)  535.5 | 
  Gastrointestinal - see condition  | 
  Gastrojejunal - see condition  | 
  Gastrojejunitis (see also Gastritis)  535.5 | 
  Gastrojejunocolic - see condition  | 
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  Gastroschisis (congenital)  756.79 | 
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  Gastrospasm (neurogenic) (reflex)  536.8 | 
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  Gastrostomy  | 
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  Gastrosuccorrhea (continuous) (intermittent)  536.8 | 
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  Gaucher's  | 
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  GAVE (gastric antral vascular ectasia)  537.82 | 
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  Gayet's disease (superior hemorrhagic polioencephalitis)  265.1 | 
  Gayet-Wernicke's syndrome (superior hemorrhagic polioencephalitis)  265.1 | 
  Gee (-Herter) (-Heubner) (-Thaysen) disease or syndrome (nontropical sprue)  579.0 | 
  Gélineau's syndrome (see also Narcolepsy)  347.00 | 
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  Gemistocytoma (M9411/3)  | 
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  Genetic  | 
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  General, generalized - see condition  | 
  Genital - see condition  | 
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  Genito-anorectal syndrome  099.1 | 
  Genitourinary system - see condition  | 
  Genu  | 
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