K31: Other diseases of stomach and duodenum includes functional disorders of stomach excludes2 diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43) diverticulum of duodenum (K57.00-K57.13) |
| K31.0: Acute dilatation of stomach |
| K31.1: Adult hypertrophic pyloric stenosis |
| K31.2: Hourglass stricture and stenosis of stomach |
| K31.3: Pylorospasm, not elsewhere classified |
| K31.4: Gastric diverticulum |
| K31.5: Obstruction of duodenum |
| K31.6: Fistula of stomach and duodenum |
| K31.7: Polyp of stomach and duodenum |
| K31.8: Other specified diseases of stomach and duodenum |
| K31.9: Disease of stomach and duodenum, unspecified |
| K31.A: Gastric intestinal metaplasia |