DISEASES OF ESOPHAGUS, STOMACH, AND DUODENUM (530-539)
536 Disorders of function of stomach
Excludes:
functional disorders of stomach specified as psychogenic (306.4)
536.0: Achlorhydria
536.1: Acute dilatation of stomach
Acute distention of stomach
536.2: Persistent vomiting
Cyclical vomiting
Habit vomiting
Persistent vomiting [not of pregnancy]
Uncontrollable vomiting
Excludes:
bilious emesis (vomiting) (787.04)
excessive vomiting in pregnancy (643.0-643.9)
vomiting NOS (787.03)
cyclical, associated with migraine (346.2)
vomiting of fecal matter (569.87)
536.3: Gastroparesis
Gastroparalysis
Code first underlying disease, if known, such as:
diabetes mellitus (249.6, 250.6)
536.4: Gastrostomy complications
536.8: Dyspepsia and other specified disorders of function of stomach
Achylia gastrica
Hourglass contraction of stomach
Hyperacidity
Hyperchlorhydria
Hypochlorhydria
Indigestion
Tachygastria
Excludes:
achlorhydria (536.0)
heartburn (787.1)
536.9: Unspecified functional disorder of stomach
Functional gastrointestinal:
disorder
disturbance
irritation

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