| MDC 6 Diseases & Disorders of the Digestive System |
| G.I.Hemorrhage |
| K250 | Acute gastric ulcer with hemorrhage |
| K252 | Acute gastric ulcer with both hemorrhage and perforation |
| K254 | Chronic or unspecified gastric ulcer with hemorrhage |
| K256 | Chronic or unspecified gastric ulcer with both hemorrhage and perforation |
| K260 | Acute duodenal ulcer with hemorrhage |
| K262 | Acute duodenal ulcer with both hemorrhage and perforation |
| K264 | Chronic or unspecified duodenal ulcer with hemorrhage |
| K266 | Chronic or unspecified duodenal ulcer with both hemorrhage and perforation |
| K270 | Acute peptic ulcer, site unspecified, with hemorrhage |
| K272 | Acute peptic ulcer, site unspecified, with both hemorrhage and perforation |
| K274 | Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage |
| K276 | Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation |
| K280 | Acute gastrojejunal ulcer with hemorrhage |
| K282 | Acute gastrojejunal ulcer with both hemorrhage and perforation |
| K284 | Chronic or unspecified gastrojejunal ulcer with hemorrhage |
| K286 | Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation |
| K2901 | Acute gastritis with bleeding |
| K2921 | Alcoholic gastritis with bleeding |
| K2931 | Chronic superficial gastritis with bleeding |
| K2941 | Chronic atrophic gastritis with bleeding |
| K2951 | Unspecified chronic gastritis with bleeding |
| K2961 | Other gastritis with bleeding |
| K2971 | Gastritis, unspecified, with bleeding |
| K2981 | Duodenitis with bleeding |
| K2991 | Gastroduodenitis, unspecified, with bleeding |
| K31811 | Angiodysplasia of stomach and duodenum with bleeding |
| K3182 | Dieulafoy lesion (hemorrhagic) of stomach and duodenum |
| K5521 | Angiodysplasia of colon with hemorrhage |
| K5701 | Diverticulitis of small intestine with perforation and abscess with bleeding |
| K5711 | Diverticulosis of small intestine without perforation or abscess with bleeding |
| K5713 | Diverticulitis of small intestine without perforation or abscess with bleeding |
| K5721 | Diverticulitis of large intestine with perforation and abscess with bleeding |
| K5731 | Diverticulosis of large intestine without perforation or abscess with bleeding |
| K5733 | Diverticulitis of large intestine without perforation or abscess with bleeding |
| K5741 | Diverticulitis of both small and large intestine with perforation and abscess with bleeding |
| K5751 | Diverticulosis of both small and large intestine without perforation or abscess with bleeding |
| K5753 | Diverticulitis of both small and large intestine without perforation or abscess with bleeding |
| K5781 | Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding |
| K5791 | Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding |
| K5793 | Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding |
| K625 | Hemorrhage of anus and rectum |
| K920 | Hematemesis |
| K921 | Melena |
| K922 | Gastrointestinal hemorrhage, unspecified |