According to the 2012 LARC quick coding guide on the ACOG website:
"The use of ultrasound to check IUD placement is not bundled into the IUD insertion code and it is not common practice to use ultrasound to confirm placement. Therefore, this should not be routinely billed. However, the ultrasonography may be used to confirm the location of teh IUD when the physician incurs a difficult IUD placement (e.g., severe pain, uterine performation, etc.). If ultrasound is used, one of the following codes is added:
code 76857
Code 76830
Occasionally, ultrasound is needed to guide IUD insertion. If ultrasound is used, add code 76998 (ultrasonic guidance, intraoperative)."