II 118th CONGRESS 1st Session S. 1000 IN THE SENATE OF THE UNITED STATES March 28, 2023 Mr. Brown (for himself and Mr. Tillis ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend title XVIII of the Social Security Act to improve the accuracy of market-based Medicare payment for clinical diagnostic laboratory services, to reduce administrative burdens in the collection of data, and for other purposes.