The obstruction of the right ventricular outflow tract that originates within the body of the right ventricle, that exists at the time of birth; it often occurs in association with other intracardiac anomalies. The disease is MONDO_0006935 (pulmonary subvalvular stenosis). Also known as: congenital infundibular stenosis, infundibular pulmonic stenosis, infundibular pulmonic stenosis, congenital, pulmonary infundibular stenosis, subvalvular pulmonic stenosis.