Disease Summary help help Associated Targets (3)Tbio2Tchem1 Explore Associated Targets list Mondo Description Non-neoplastic overgrowth of bone. Disease Ontology Description A hyperostosis that involves formation of new bone on the surface of preexisting bone. Mondo Term and Equivalent IDs MONDO:0002181: exostosis COHD:72715: DOID:203: exostosisopen_in_newICD9:726.91: NCIT:C3029: open_in_newSCTID:235231000119100: open_in_newSCTID:416189003: open_in_newUMLS:C1442903: open_in_newUMLS:C1956089: open_in_new