Double free flap, including 2 free transfers of tissue (reconstructive surgery) for the repair of major tissue defect, involving anastomoses of all required vessels using microvascular techniques, all necessary elements of the operation including (but not limited to):(a) raising each flap of tissue on a separate vascular pedicle; and(b) preparation of recipient vessels; and(c) transfer of tissue; and(d) inset of tissue at recipient site; and(e) direct repair of secondary cutaneous defect, if performed;other than a service:(f) performed in the context of breast reconstruction; or(g) associated with a service to which item 30166, 30169, 30175, 30176, 30177, 30179, 45501, 45502, 45504, 45505 or 45562 appliesConjoint surgery, conjoint specialist surgeon (H) (Anaes.) (Assist.)