Problem: An infant, who had previously undergone modified Blalock-Taussig shunt surgery secondary to transposition of the great arteries and left ventricular outflow tract obstruction, presents for complete repair. The surgeon performed a Rastelli operation (ventricular septal defect closure using Gore-Tex baffle and right ventricle (RV) to pulmonary artery (PA) bypass with a Contegra valved conduit) after placing the patient on cardiopulmonary bypass. When a valved conduit is used in the bypass procedure, is it appropriate to assign an additional code for valve replacement? How should this surgery be coded? Want Online Help?