Secondary pulmonary arterial hypertension

**Inclusion terms:** - (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS - (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension

**Code also:** - associated conditions if applicable, or adverse effects of drugs or toxins, such as: - adverse effect of appetite depressants (T50.5X5) - congenital heart disease (Q20-Q28) - human immunodeficiency virus [HIV] disease (B20) - polymyositis (M33.2-) - portal hypertension (K76.6) - rheumatoid arthritis (M05.-) - schistosomiasis (B65.-) - Sjögren syndrome (M35.0-) - systemic sclerosis (M34.-)