How Your ICD Medical Billing Reporting Will Change Next Year Medical billing is improving in the world of Cardiology. Before January 1, 2006, you must contact the ACC (American College of Cardiology) in order to enroll in a new ICD (implant able cardioverter defibrillator) data registry. It is the hope that this new repository will improve cardiovascular care and medical billing. On Oct. 27, 2005, the Centers for Medicare & Medicaid Services announced that hospitals must begin using the new data registry before the beginning of the year. The current system is called the Quality Network Exchange ICD Abstract Tool (QNET) and the new system is simply called the ICD …