periodontal disease SNOMEDCT_US_2020_03_01:196354003 NCI:C63743 UMLS_CUI:C0031090 DOID:3388 A mouth disease that is relating to or affecting the structures surrounding and supporting the teeth. MESH:D010510 Periodontal disease disease_ontology ICD10CM:K05.6 disease of supporting structures of teeth periodontium disorder mouth disease