CPT® Code 93642

Electrophysiologic evaluation of single or dual chamber transvenous pacing cardioverter-defibrillator (includes defibrillation threshold evaluation, induction of arrhythmia, evaluation of sensing and pacing for arrhythmia termination, and programming or reprogramming of sensing or therapeutic parameters)

The CPT® Code 93642 refers to the electrophysiologic evaluation of a single or dual chamber transvenous pacing cardioverter-defibrillator. This procedure is essential for assessing the functionality and effectiveness of previously implanted devices designed to manage life-threatening arrhythmias. During this evaluation, several critical components are examined, including the defibrillation threshold, which determines the minimum energy level required to successfully terminate an arrhythmia. The procedure also involves the induction of arrhythmia to test the device's response and its ability to sense and pace effectively for arrhythmia termination. Additionally, programming or reprogramming of the device's sensing or therapeutic parameters may be performed to optimize its performance. This periodic evaluation ensures that the cardioverter-defibrillator is operating correctly, capable of detecting arrhythmias, and delivering appropriate therapy when needed. The overall goal is to maintain the device's efficacy in converting arrhythmias to a normal heart rhythm, thereby enhancing patient safety and health outcomes.