; and (ii) the inflation-adjusted payment amount under paragraph (3)(C). . (c) Conforming amendment to part B ASP calculation Section 1847A(c)(3) of the Social Security Act (42 U.S.C. 1395w–3a(c)(3)) is amended by inserting or subsection (h) after section 1927 . 107. Requiring manufacturers of certain single-dose container or single-use package drugs payable under part B of the Medicare program to provide refunds with respect to discarded amounts of such drugs Section 1847A of the Social Security Act ( 42 U.S.C. 1395–3a ), as amended by section 106, is amended by adding at the end the following new subsection: (i) Refund for certain discarded single-dose container or single-use package drugs (1) Secretarial provision of information (A) In general For each calendar quarter beginning on or after July 1, 2021, the Secretary shall, with respect to a refundable single-dose container or single-use package drug (as defined in paragraph (8)), report to each manufacturer (as defined in subsection (c)(6)(A)) of such refundable single-dose container or single-use package drug the following for the calendar quarter: (i) Subject to subparagraph (C), information on the total number of units of the billing and payment code of such drug, if any, that were discarded during such quarter, as determined using a mechanism such as the JW modifier used as of the date of enactment of this subsection (or any such successor modifier that includes such data as determined appropriate by the Secretary). (ii) The refund amount that the manufacturer is liable for pursuant to paragraph (3). (B) Determination of discarded amounts For purposes of subparagraph (A)(i), with respect to a refundable single-dose container or single-use package drug furnished during a quarter, the amount of such drug that was discarded shall be determined based on the amount of such drug that was unused and discarded for each drug on the date of service. (C) Exclusion of units of packaged drugs The total number of units of the billing and payment code of a refundable