No. Portal Hypertension is specific hypertension in the portal system while general hypertension is the primary hypertension. Portal hypertension happens when there is high pressure in the portal circulation or the circulation in the Liver and lower body organs.

Hypertension is not bad.

Gestational hypertension may or may not result from regular hypertension. But this is usually gone after the pregnancy.

High blood pressure is hypertension, and low blood pressure is hypotension.

Hypertension without a known cause is called primary or essential hypertension.