Dysfunction of the pulmonary valve characterized by incomplete valve closure. The disease is pulmonary valve insufficiency (MONDO_0001927). Also known as: pulmonary incompetence, pulmonary incompetence, non-rheumatic, pulmonary insufficiency following trauma and surgery, pulmonary regurg., pulmonary regurgitation, pulmonary valve regurgitation, pulmonary valvular regurgitation, pulmonic insufficiency.