Hypertension [Disease/Finding] Blood Pressure, High C3410 Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. 1023354 D006973 M0010859 N0000001616 Hypertension C0020538 Hypertension 38341003 Vascular Diseases [Disease/Finding]