1. Short title This Act may be cited as the Facilitating Innovative Nuclear Diagnostics Act of 2023 . 2. Separate payment for certain diagnostic radiopharmaceuticals (a) In general Section 1833(t)(16) of the Social Security Act ( 42 U.S.C. 1395l(t)(16) ) is amended by adding at the end the following new subparagraph: (H) Separate payment for certain diagnostic radiopharmaceuticals (i) In general Notwithstanding any other provision of this subsection, with respect to services furnished on or after January 1, 2024, the Secretary shall not package, and shall make a separate payment as specified in clause (ii) for a diagnostic radiopharmaceutical (as defined in clause (v)) with an estimated mean per day product cost equal to or exceeding the threshold specified in clause (iii). (ii) Separate payment For purposes of clause (i), the separate payment specified in this subclause for a diagnostic radiopharmaceutical described in clause (i) shall be equal to— (I) the average sales price for the drug established under section 1847A, to the extent the average sales price is available, as calculated and adjusted by the Secretary to the extent such adjustment is adopted for other specified covered outpatient drugs under paragraph (14)(A); or (II) if the data necessary to calculate the average sales price for the drug in the year under the section and paragraph specified in subclause (I) is not available, the wholesale acquisition cost (as defined in section 1847A(c)(6)(B)), as calculated and adjusted by the Secretary to the extent such adjustment is adopted for other specified covered outpatient drugs under paragraph (14)(A), or, if the wholesale acquisition cost is not available, the mean unit cost data derived from hospital claims data. Nothing in this subparagraph shall be construed as affecting the eligibility of diagnostic radiopharmaceuticals for pass-through payments under paragraph (6). (iii) Threshold For purposes of this subparagraph, the threshold specified in this clause— (I) for 2024, is $500