; and (2) by adding at the end the following: (B) Authorization of appropriations There is authorized to be appropriated such sums as may be necessary to address capacity limitations of entities serving as navigators through a grant under this subsection. . 4. Protecting against high out-of-pocket expenditures for Medicare fee-for-service benefits Title XVIII of the Social Security Act ( 42 U.S.C. 1395 et seq.) is amended by adding at the end the following new section: 1899D. Protection against high out-of-pocket expenditures (a) In general Notwithstanding any other provision of this title, in the case of an individual entitled to, or enrolled for, benefits under part A or enrolled in part B, if the amount of the out-of-pocket cost-sharing of such individual for a year (beginning with 2020) equals or exceeds the annual out-of-pocket limit under subsection (b) for that year, the individual shall not be responsible for additional out-of-pocket cost-sharing incurred during that year. (b) Annual out-of-Pocket limit (1) In general The amount of the annual out-of-pocket limit under this subsection shall be— (A) for 2020, $6,700; or (B) for a subsequent year, the amount specified in this subsection for the preceding year increased or decreased by the percentage change in the medical care component of the Consumer Price Index for All Urban Consumers for the 12-month period ending with June of such preceding year. (2) Rounding If any amount determined under paragraph (1)(B) is not a multiple of $5, such amount shall be rounded to the nearest multiple of $5. (c) Out-of-Pocket cost-Sharing defined (1) In general Subject to paragraphs (2) and (3), in this section, the term out-of-pocket cost-sharing means, with respect to an individual, the amount of the expenses incurred by the individual that are attributable to— (A) deductibles, coinsurance, and copayments applicable under part A or B