Endoscopic retrograde cholangiopancreatography (ERCP), with single operator, single use peroral cholangiopancreatoscopy (POCPS) and electrohydraulic or laser lithotripsy for the removal of biliary stones that are: (a) greater than 10mm in diameter; or (b) proximal to a stricture; for a patient for whom there has been at least one failed attempt at removal via ERCP extraction techniques Applicable not more than 2 times per treatment cycle (H) (Anaes.) (Assist.)