One of our neurosurgeons is placing what is called a Coflex device. I’ve gathered literature, searched all of my books and also had a meeting with Dr. The AANS and NASS give different suggestions on how to bill the device, AANS suggests 0107T while NASS suggests the unlisted 22899. After discussing with Dr. felt 22840 and 63047 were appropriate. With all of that said I cannot seem to find documentation to support the use of a single code across the board. Literally I have spent weeks trying to dig up information! Any suggestions?