Cryotherapy was done to 3 sites- 2 with dx code of 702.0 actinic keratosis and one with dx code 702.11 inflamed seborrheic keratosis. MD coded 17000 x 2 and 17003 x 1. Can 17000 be coded x 2 in one session if the dx codes are different for the 2 sites. If these codes are correct, would a -59 modifier be added to one of the 17000 codes?