1. Short title This Act may be cited as the Expanding Seniors’ Access to PFAS Testing Act . 2. No-cost coverage for PFAS testing under Medicare (a) In general Section 1861 of the Social Security Act ( 42 U.S.C. 1395x ) is amended— (1) in subsection (ww)(2)— (A) by moving the margin of subparagraph (N) 2 ems to the left; (B) by redesignating subparagraph (O) as subparagraph (P); and (C) by inserting after subparagraph (N) the following new subparagraph: (O) PFAS testing (as defined in subsection (nnn)). ; and (2) by adding at the end the following new subsection: (nnn) PFAS testing The term PFAS testing means a blood test ordered by a physician to determine the concentration of perfluoroalkyl and polyfluoroalkyl substances. . (b) Application of no cost-Sharing Section 1833(a)(1) of the Social Security Act ( 42 U.S.C. 1395l(a)(1) ) is amended— (1) in subparagraph (Y), by inserting “(other than PFAS testing (as defined in section 1861(nnn)) furnished on or after January 1, 2024)” after “in the case of such services described in subparagraph (A)”; (2) in subparagraph (GG), by striking and at the end; and (3) by inserting , and (II) with respect to PFAS testing (as defined in section 1861(nnn)) performed on or after January 1, 2024, the amounts paid shall be 100 percent of the lesser of the actual charges for testing or the amount determined under the fee schedule that applies to the screening and preventive services described in section 1861(ww)(2) before the semicolon at the end.