; and (II) if such sufficient information does not exist, the median of the contracted rates recognized by all health plans offered in the same line of business (as specified in subparagraph (C)) by any group health plan for such an item or service furnished in a similarly situated geographic region (as determined by the Secretary) with such sufficient information by such a provider or facility during such year using such a database or such other source of information. The Secretary shall develop a methodology for determining a substitute rate based on a similarly situated health plan that is not a Federal health care program (as defined in section 1128B(f) of the Social Security Act) in the case a substitute rate is not calculable under the previous sentence with respect to an item or service. (C) Line of business A line of business specified in this subparagraph is one of the following: (i) The small group market. (ii) The large group market. (iii) In the case of a self-insured group health plan, other self-insured group health plans. (D) Rebasing year defined For purposes of subparagraph (A), the term rebasing year means 2027 and every 5 years thereafter. (9) Nonparticipating facility