; and (B) by adding at the end the following new subparagraph: (C) Use of statistical sampling for widely available clinical diagnostic laboratory tests (i) In general Subject to clause (ii), with respect to data collection periods for reporting periods beginning on or after January 1, 2026, in the case of a widely available clinical diagnostic laboratory test (as defined in clause (iii)), in lieu of requiring the reporting of applicable information from each applicable laboratory, the Secretary shall require the collection and reporting of applicable information from a statistically valid sample of applicable laboratories for each such widely available clinical diagnostic laboratory test. (ii) Requirements for statistical sampling (I) In general The Secretary, in consultation with stakeholders, shall develop a methodology for a statistically valid sample under clause (i), using the maximal brewer selection method, as described in the June 2021 Medicare Payment Access Commission Report to the Congress, to establish the payment amount for a widely available clinical diagnostic laboratory test under paragraph (2) of subsection (b) for each applicable HCPCS code for a widely available clinical diagnostic laboratory test. (II) Representative sampling The methodology under subclause (I) for a statistically valid sample under clause (i) shall, for each applicable HCPCS code for a widely available clinical diagnostic laboratory test— (aa) provide for a sample that allows for the payment amounts established under paragraph (2) of subsection (b) for such a test to be representative of rates paid by private payors to applicable laboratories receiving payment under this section, including independent laboratories, hospital laboratories, hospital outreach laboratories, and physician office laboratories that furnish the widely available clinical diagnostic laboratory test