essential hypertension https://www.malacards.org/card/hypertension_essential MONDO:0001134 DOID:10825 primary hypertension SCTID:59621000 UMLS:C0085580 idiopathic hypertension ICD9:401 MESH:D000075222 MEDGEN:88442 Hypertension that presents without an identifiable cause. ICD9:401.9 icd11.foundation:761947693 Orphanet:243761 hypertensive disorder