does anyone work for a physician who prescribes phenteramine for weight loss? i am having trouble with coding for this. i'm getting different codes for the same patient's sent to me and i'm working with the nurses and doctor to get this resolved but the 2 they are toggling between are 783.21 weight loss, abnormal (which is incorrect) or 278.00-278.02 obesity and overweight codes. we believe the obesity codes are correct if they meet that criteria. i'm wondering how others are coding these visits?