Ask Dr. Z

"TV USG microwave ablation of C-section ectopic pregnancy. Transvaginal ultrasound shows ectopic pregnancy located gestational sac located in the lower uterine segment of  the uterus. Needle seen traversing ectopic pregnancy. Under real-time ultrasound, the ablation was seen to encompass the entire ectopic. An initial burn was performed at 48 sec @ 100 watts. This was followed by a second burn with the needle pulled slightly back for 24 sec @ 100 watts. The needle was withdrawn, and a post ablation ultrasound was performed. Post ablation ultrasound shows small amount of expected bleeding and gas within the endometrial cavity." How would you code this procedure? We are considering CPT code 59899.