Pulmonic stenosis, also known as Pulmonary stenosis, is a dynamic or fixed obstruction to flow from the right ventricle of the heart to the pulmonary artery. It is usually first diagnosed in childhood. Pulmonic stenosis is usually due to isolated valvular obstruction (Pulmonary valve stenosis), but may be due to subvalvular or supravalvular (Stenosis of pulmonary artery) obstruction. It may occur in association with more complicated congenital heart disorders.