NCIthesaurus has symptom tricuspid valve disease tricuspid valve insufficiency UMLS_CUI:C0040961 NCI:C50842 A tricuspid valve disease that is characterized by failure of the heart's tricuspid valve to close properly during systole. As a result, with each heart beat, blood is pumped out from the right side of the heart in the opposite direction to normal. DOID:4080 SNOMEDCT_US_2025_09_01:111287006 MESH:D014262 Tricuspid incompetence Tricuspid regurgitation disease_ontology Tricuspid valve regurgitation heart failure