For the past several years we have been billing the Tenex and Tenjet procedures as percutaneous tenotomies. The doctors maintain that they are doing an actual percutaneous tenotomy and Tenex is just the name of the tool that they are using. They tell me that the work that they are doing is exactly the same as a traditional percutaneous tenotomy. I have recently received information stating that we are billing this incorrectly and that we should be using unlisted codes for all of these procedures. I know that Anthem, Cigna and Aetna all state that Tenex is investigational, but what is the difference between the two procedures? The doctors that I work for are pressing me for an answer.