Laparotomy or laparoscopy for intestinal obstruction or division of extensive, complex adhesions, lasting 2 hours or more, performed either:a) as a primary procedure; orb) when the division of adhesions is performed in conjunction with another procedure—to provide access to a surgical field, but excluding mobilisation or normal anatomical dissection of the organ or structure for which the other procedure is being carried out (Anaes.) (Assist.)