gastroenteritis NCI:C34632 SNOMEDCT_US_2020_03_01:154278002 A gastrointestinal system infectious disease that involves inflammation of the lining of the stomach and small and large intestines, which is caused by viruses, bacteria, or parasites. Chemicals and drugs also cause gastroenteritis. The symptoms include diarrhea, loss of appetite, nausea, vomiting, cramps, and discomfort in the abdomen. ICD10CM:K52.9 DOID:4094 DOID:2326 disease_ontology UMLS_CUI:C0017160 DOID:5269 MESH:D005759 MESH:D005759 cholera morbus infectious colitis, enteritis and gastroenteritis gastrointestinal system disease