The answer to this depends on the purpose and intent of the procedure. You don't include the description of the procedure, the "Procedure Done," or the Postoperative Diagnosis in you query, but based on what you do present, it appears that your surgeon did an extensive tenosynovectomy of the flexor tendons at the wrist (25115), which usually requires carrying the wound/incision out to the level of the palm of the hand in order to get full exposure and access of the tendons. This requires release of the Transverse Carpal Ligament, which "incidentally" results in a Neurolysis of the Median Nerve (i.e. Carpal Tunnel Release, 64721). The nerve has to be retracted and protected in order to do the tenosynovectomy completely. The Neurolysis of the Median Nerve (64721) would be an incidental procedure and included in the 25115 charge. Even if the patient had both Chronic Tenosynovitis of the flexor tendons and Carpal Tunnel Syndrome, I doubt that you would be able to charge the 64721 separately, even with a Modifier 51 or 22, and get away with it since they are already "Bundled."
Respectfully submitted, Alan Pechacek, M.D.