duodenal ulcer (K26.-)gastrointestinal ulcer (K28">K28">K28">K28.-)gastrojejunal ulcer (K28">K28">K28">K28.-)jejunal ulcer (K28">K28">K28">K28.-)peptic ulcer, site unspecified (K27.-)ulcer of intestine with perforation (K63.1)ulcer of anus or rectum (K62.6)ulcerative colitis (K51.-)