Abnormal bleeding Gastrointestinal hemorrhage true SNOMEDCT:74474003 SNOMEDCT_US:74474003 Gastrointestinal bleeding HP:0002239 GI haemorrhage UMLS:C0017181 UMLS:C1880931 ICD9:578 GI hemorrhage Hemorrhage affecting the gastrointestinal tract. Gastrointestinal haemorrhage NCIt:C48592 Abnormality of blood circulation Functional abnormality of the gastrointestinal tract hemorrhage