DO_rare_slim NCIthesaurus pulmonary venoocclusive disease ORDO:31837 A pulmonary hypertension that is characterized by pulmonary venous constriction or occlusion, resulting in pulmonary hypertension. UMLS_CUI:C0034091 GARD:10153 SNOMEDCT_US_2025_09_01:89420002 DOID:5453 MESH:D011668 OMIM has split this term into two subtypes. disease_ontology MIM:PS265450 NCI:C85039 pulmonary veno-occlusive disease pulmonary hypertension