Ask Dr. Z

Our provider did aorto-bi-iliac graft (34705) and placed IBE on left side for common iliac aneurysm (34717). He also selected and embolized a largest terminal branch of left internal iliac artery with coils to avoid endo leak in future. As per CPT guidelines for 34707, 34708, 34717, and 34718, the treatment zone is defined as the portion of the iliac artery (common, internal, external iliac arteries) that contains the endograft. So if the embolization is done is in a branch of internal iliac artery that does not have the endograft, will that embolization be billable? Could you please advise whether 37242 is billable with 34717 in this case? Also he did angiogram in the mesenteric artery to find if it could be embolized to prevent endo-leak. Will that angiogram be billable with 75726? Do we need to consider that angiogram as diagnostic, or since it is done as a prophylactic measure will that not be billable? Please advise.