25mmHg is from 2009; updated 2019 consensus is 20mmHg
https://www.uptodate.com/contents/clinical-features-and-diagnosis-of-pulmonary-hypertension-of-unclear-etiology-in-adults?search=pulmonary%20hypertension%20diagnosis&source=search_result&selectedTitle=1~150&usage_type=default&display_rank=1#H1558740756
https://next.amboss.com/us/article/w50hmg?q=pulmonary%20htn#Yfeb55e0f073e67fd6d7bacefefb3cc90