gastrointestinal system benign neoplasm +
intestinal disease +

acute vascular insufficiency of intestine
angiodysplasia of intestine
angiostrongyliasis
appendix leiomyoma
baylisascariasis
blind loop syndrome
bowel dysfunction
capillariasis
cecal disease +
chronic intestinal vascular insufficiency
colonic disease +
cryptosporidiosis
diverticulitis +
duodenitis
duodenum disease +
endometriosis of intestine
enterokinase deficiency
esophageal lipoma
esophagus leiomyoma
esophagus squamous cell papilloma
familial adenomatous polyposis +
gastric hemangioma
gastric leiomyoma
gastrointestinal adenoma
gastrointestinal neuroendocrine benign tumor +
hepatobiliary benign neoplasm +
hereditary mixed polyposis syndrome +
inflammatory bowel disease +
inguinal hernia
intestinal atresia +
intestinal cancer +
intestinal disaccharidase deficiency
intestinal infectious disease +
intestinal obstruction +
intestinal perforation +
intestinal schistosomiasis
intestinal tuberculosis
intestine carcinoma in situ +
irritable bowel syndrome
metagonimiasis
mucocele of appendix
multiple intestinal atresia
neurogenic bowel
pancreatic cystadenoma +
pancreatic intraductal papillary-mucinous adenoma
Peutz-Jeghers syndrome
pleomorphic adenoma
pneumatosis cystoides intestinalis
postgastrectomy syndrome +
protein-losing enteropathy
rectal disease +
short bowel syndrome
sitosterolemia 1
sitosterolemia 2
squamous papillomatosis
strongyloidiasis
trichuriasis
tropical sprue
umbilical hernia
Whipple disease

anus benign neoplasm +
appendiceal neoplasm
cecal benign neoplasm +
colonic benign neoplasm +
colorectal adenoma
intestinal neuroendocrine benign tumor
large bowel leiomyoma
large intestine adenoma
large intestine lipoma +
rectal benign neoplasm +
small intestine benign neoplasm +