93623 is an add on code used when IV intravenous drug infusion is used for programmed stimulation and pacing at the beginning of a case. One of my physicians is not using IV drug for pacing at the beginning of the case and this cpt code cannot be used to verify the effectiveness of the ablation procedure at the end. So she is using Isubrel at the end of the ablation to see if any arrhythmias can be invoked and now she wants me to bill CPT 96365- for the post ablation to test existing arrhythmias. Does anyone know if this is feasible? I can’t find any information on the use of this cpt for Post EP study. I appreciate any help.