My doctor did a laminotomy and foraminotomies re-exploration of lumbar wound because the pt has stenosis and radiculopathy of the lumbar area. During the procedure he found 2 small pinpoint spots of CSF fistula through the dura in which he repaired using sutures. Can I bill the repair of the CSF fistula using code 63709? Or should I just use 63042 and not use 63709 with the 63042. Thanks for anyones help.