Pulmonary Valve Stenosis

**Definition:** The pathologic narrowing of the orifice of the PULMONARY VALVE. This lesion restricts blood outflow from the RIGHT VENTRICLE to the PULMONARY ARTERY. When the trileaflet valve is fused into an imperforate membrane, the blockage is complete.

**Tree numbers:** - C14.280.484.716 - C14.280.955.750

**Synonyms:** - Pulmonary Valve Stenoses - Stenoses, Pulmonary Valve - Stenosis, Pulmonary Valve - Valvular Pulmonic Stenosis