| K31 |
Other diseases of stomach and duodenum |
| 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 |
| K31.81 |
Angiodysplasia of stomach and duodenum |
| K31.811 |
Angiodysplasia of stomach and duodenum with bleeding |
| K31.819 |
Angiodysplasia of stomach and duodenum without bleeding |
| K31.82 |
Dieulafoy lesion (hemorrhagic) of stomach and duodenum |
| K31.83 |
Achlorhydria |
| K31.84 |
Gastroparesis |
| K31.89 |
Other diseases of stomach and duodenum |
| K31.9 |
Disease of stomach and duodenum, unspecified |
| K31.A |
Gastric intestinal metaplasia |
| K31.A1 |
Gastric intestinal metaplasia without dysplasia |
| K31.A11 |
Gastric intestinal metaplasia without dysplasia, involving the antrum |
| K31.A12 |
Gastric intestinal metaplasia without dysplasia, involving the body (corpus) |
| K31.A13 |
Gastric intestinal metaplasia without dysplasia, involving the fundus |
| K31.A14 |
Gastric intestinal metaplasia without dysplasia, involving the cardia |
| K31.A15 |
Gastric intestinal metaplasia without dysplasia, involving multiple sites |
| K31.A19 |
Gastric intestinal metaplasia without dysplasia, unspecified site |
| K31.A2 |
Gastric intestinal metaplasia with dysplasia |
| K31.A21 |
Gastric intestinal metaplasia with low grade dysplasia |
| K31.A22 |
Gastric intestinal metaplasia with high grade dysplasia |
| K31.A29 |
Gastric intestinal metaplasia with dysplasia, unspecified |