Table 1.

EMR encounter diagnosis terminology for PAH and non-PAH groups.

PAH group (suggestive of PAH)	Non-PAH group (not suggestive of PAH)
Development cohort
BMPR2 PAH (pulmonary arterial hypertension) Idiopathic PAH (pulmonary arterial hypertension) PAH (pulmonary arterial hypertension) Primary pulmonary HTN Primary pulmonary hypertension Primary pulmonary hypertensive arterial disease Pulmonary arterial hypertension Pulmonary artery hypertension Pulmonary arterial hypertension with portal hypertension PAH (pulmonary arterial hypertension) with portal hypertension	Hypertensive pulmonary venous disease Mild pulmonary hypertension Moderate to severe pulmonary hypertension Other chronic pulmonary heart disease PHT (pulmonary hypertension) Pulmonary HTN Pulmonary hypertension Pulmonary hypertension, mild Pulmonary hypertension, moderate to severe Pulmonary hypertension, secondary Pulmonary hypertensive venous disease Pulmonary hypertension with unclear multi-factorial mechanisms Secondary pulmonary hypertension
Validation Cohort
Primary pulmonary hypertension	Other chronic pulmonary hypertension