Category III codes are common so many health plans, including Medicare, may allow submission of a cover letter in which you can identify a comparable procedure code and describe why you believe there are similarities in work, time, and complexity between the Vanquish procedure and the identified comparison procedure. You can also describe differences between the two procedures including whether the Vanquish procedure requires more or less work, time, and complexity than the identified procedure (see question below). It can be helpful to provide in your cover letter the associated RVUs for the identified comparison procedure, and your intended charges for the Vanquish procedure. Contact the health plan for specific billing instructions.