CPT® Code 93641

Electrophysiologic evaluation of single or dual chamber pacing cardioverter-defibrillator leads including defibrillation threshold evaluation (induction of arrhythmia, evaluation of sensing and pacing for arrhythmia termination) at time of initial implantation or replacement; with testing of single or dual chamber pacing cardioverter-defibrillator pulse generator

An electrophysiologic evaluation of single or dual chamber pacing cardioverter-defibrillator leads is a critical procedure performed during the initial implantation or replacement of these devices. This evaluation includes a comprehensive assessment of the defibrillation threshold, which is the minimum energy level required to successfully terminate an induced arrhythmia. The process begins with the placement of transvenous leads, which are essential for monitoring and managing heart rhythms. Once the leads are in place, an arrhythmia is intentionally induced to test the functionality of the leads. This step is crucial as it allows healthcare professionals to verify that the leads are optimally positioned to sense the arrhythmia effectively. Additionally, the evaluation involves checking the pacing capabilities of the cardioverter-defibrillator to ensure it can appropriately respond to arrhythmias. The defibrillation threshold evaluation is particularly important, as it determines whether the energy delivered by the cardioverter-defibrillator is adequate to convert the arrhythmia back to a normal heart rhythm. The entire process ensures that both the leads and the pulse generator are functioning correctly, providing confidence in the device's ability to manage potential life-threatening arrhythmias. Use 93641 when the pulse generator is also tested during this evaluation.