Tumour or deep cyst (other than a cyst associated with a tooth or tooth fragment unless it has been established by radiological examination that there is a minimum of 5 mm separation between the cyst lining and tooth structure or if a tumour or cyst has been proven by positive histopathology), removal of, requiring wide excision, other than a service to which another item in Groups O3 to O9 applies (H) (Anaes.) (Assist.)