During pregnancy hypertension is defined as: diastolic blood pressure of 90 mmHg or more on two occasions more than 4 hours apart or a single diastolic blood pressure above
[gpnotebook.co.uk]
Severe gestational hypertension is defined as systolic blood pressure more than 160 mm Hg or diastolic more than 110 mm Hg.
[symptoma.com]
All the patients had diastolic blood pressures of 85 mm Hg or above, proteinuria, and edema. They had no preexisting hypertension, renal disease, or heart disease.
[nejm.org]