Nephroureterectomy, for tumour, by open, laparoscopic or robot-assisted approach, with or without en bloc dissection of lymph nodes, including associated bladder repair and any associated endoscopic procedures, if complicated by previous open or laparoscopic surgery on the same kidney or ureter, other than a service associated with a service to which item 30390 or 30627 applies (Anaes.) (Assist.)