; (iii) for an item or service furnished during a rebasing year (as defined in subparagraph (D)), the median of the contracted rates recognized by the sponsor of such plan (determined with respect to all such plans of such sponsor that are within the same line of business (as specified in subparagraph (C)) as the plan involved) as the total maximum payment under such plans in such year for the same or a similar item or service that is provided by a provider or facility in the same or similar specialty and provided in the geographic region (as established pursuant to clause (i)) in which the item or service is furnished, consistent with the methodology established by the Secretary under subsection (b)(2)(B)