Is pulmonary hypertension 90 considered serious?

Pulmonary hypertension of 90 mmHg is considered severe pulmonary hypertension, which is more serious and should be treated promptly.
Pulmonary hypertension is a pathophysiologic state of abnormally high pulmonary arterial pressure caused by many known or unknown factors.
The diagnostic criteria given by hemodynamics are: mean arterial pressure greater than or equal to 25 mmHg measured by right heart catheterization at sea level and with the patient at rest. and according to the mean arterial pressure is classified as mild (26-35 mmHg), moderate (36-45 mmHg), and severe (greater than 45 mmHg).
Pulmonary arterial hypertension 90mmHg is higher than 45mmHg, you need to go to the hospital, to clarify the cause of the disease, to develop an appropriate treatment program. And do a systematic examination to note whether there are other comorbidities, especially the heart and lungs need to be carefully examined.