Synovectomy of digital flexor tendons at wrist level, for diagnosed inflammatory arthritis, including either or both of the following (if performed): (a) tenolysis; (b) release of median nerve and carpal tunnel; other than a service associated with: (c) a service to which item 39330 or 39331 applies; or (d) a service to which item 30023 applies that is performed at the same site Applicable once per wrist per occasion on which the service is performed (H) (Anaes.) (Assist.)