hypertension essential hypertension SNOMEDCT_2010_1_31:194757006 ICD9CM:401.9 Unspecified essential hypertension OMIM:145500 Essential hypertension NOS DOID:10825 OMIM mapping confirmed by DO. [SN]. SNOMEDCT_2010_1_31:266228004 SNOMEDCT_2010_1_31:194760004 ICD9CM:401 Essential hypertension NOS (disorder) Essential hypertension (disorder) idiopathic hypertension UMLS_CUI:C0085580 disease_ontology Essential hypertension SNOMEDCT_2010_1_31:155296003 primary hypertension SNOMEDCT_2010_1_31:59621000 NCI:C3478