Radiofrequency Ablation Endovenous Radiofrequency Ablation (RFA) is a clinically proven, minimally invasive, non-surgical procedure that treats varicose veins on an outpatient basis with minimal discomfort. The procedure is endovenous because a varicose vein is thermally ablated from within the vein. Thermal ablation of a vein is achieved by means of a catheter equipped with a radiofrequency (RF) generating electrode. This is a minimally invasive and a gentle alternative procedure to painful vein stripping surgery for varicose veins and superficial venous reflux disease therapy. Insurance eligibility of reimbursement is based on medical necessity, as defined by presence of symptoms. This procedure has one of the broadest and most complete coverage available by insurance.