hypotensive disorder orthostatic hypotension https://github.com/monarch-initiative/mondo/issues/9097 EFO:0005252 ICD9:458.0 orthostatic hypotension (disease) MONDO:0005469 Sudden fall of the blood pressure of at least 20/10 mm Hg when a person stands up. orthostatic hypotension SCTID:28651003 UMLS:C0020651 HP:0001278 MEDGEN:43803 orthostatic hypotension (disease) ICD10CM:I95.1 icd11.foundation:56009591