Hi djh
Per Dr. Z, "Codes 36475, 36476, 36478, 36479 include preliminary imaging, u/s image guidance, catheter placements, on-going imaging during the procedure, and completion/follow-up imaging after therapy" (p. 308).
DO code additionally for stab phlebectomy (37765, 37766 & 37799); injection of sclerosing agent at the same time as RF or laser ablation of extremity varicose veins (36470 or 36471); and ligation, division, and/or excision of varicose veins "clusters" with 37785. (p. 308).
Julie