Ask Dr. Z

I verify with the surgeon a comparison code and we send letters to the insurance companies. I have also suggested management involvement on a contracting level. However there are payers out there that deny unlisted procedures as investigational. I don't understand that, as some of the procedures have been performed for years. Some examples of unlisted procedures that come to mind are stab phlebectomy of varicose veins less than 10 incisions, median arcuate ligament release, and bypass revisions that don't have a code in CPT like revision of arterial bypass that are not lower extremity or hemodialysis grafts. What do you suggest?