I am trying to code for a TAMBE (thoracoabdominal branch endoprosthesis), which does not currently have a category 1 CPT (thusfore, no RVU) We have been given two ways to try bill (by a reps consultant). One, using an unlisted vascular code with a crosswalk code, and an explanation of the actual procedure being done. Two, listing all codes as comparator codes, combining those RVUs and using that total for our TAMBE RVU. The 2nd does not sit right with my manager. Any thoughts?