Synovectomy of digital extensor tendons of hand, distal to wrist, for diagnosed inflammatory arthritis, including any of the following (if performed): (a) reconstruction of extensor retinaculum; (b) removal of tendon nodules; (c) tenolysis; (d) tenoplasty; other than a service associated with: (e) a service to which item 39330 applies; or (f) a service to which item 30023 applies that is performed at the same site Applicable once per hand per occasion on which the service is performed (H) (Anaes.) (Assist.)