Complete excision of one or more ganglia or mucous cysts of interphalangeal, metacarpophalangeal or carpometacarpal joint of hand, including any of the following (if performed): (a) arthrotomy; (b) osteophyte resections (c) synovectomy other than a service associated with a service to which item 30107 or 46336 applies—one joint (H) (Anaes.) (Assist.)