I have an insurance company (Priority Health) that has started denying my "Q" codes (Q4010, Q4006...) for missing anatomical modifier. Is anyone else having this issue? If I apply one, my clearing house denies the claim because of the invalid modifier combination and wont send the claim out but the insurance comp is denying them all without it. Customer service claims department told me to see their provider manual regarding modifier usage because they cant tell me how to bill. Has there been a change that I missed?? Ideas of how to fix this? It has to be a technical issue on their end, right? Why would a supply need anatomical modifier??