Definition: Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.
Synonyms (terms occurring on more labels are shown first): gastrointestinal hemorrhage, gastrointestinal bleeding, GI hemorrhage, gastrointestinal haemorrhage, GI bleeding, gastro-intestinal bleeding, GI haemorrhage, gastro- intestinal bleeding, gastrointestinal haemorrhages, gastrointestinal bleed, Gastro-intestinal haemorrhage, GI bleed, gastro-intestinal hemorrhage, gastro- intestinal hemorrhage, gastro intestinal bleeding, hemorrhage of gastrointestinal tract, gastrointes- tinal bleeding
More information: PubMed search and possibly Wikipedia