1. Short title This Act may be cited as the Medicare Part B Home Infusion Services Temporary Transitional Payment Act . 2. Home infusion therapy services temporary transitional payment (a) In general Section 1834(u) of the Social Security Act ( 42 U.S.C. 1395m(u) ) is amended, by adding at the end the following new paragraph: (7) Home infusion therapy services temporary transitional payment (A) Temporary transitional payment (i) In general The Secretary shall, in accordance with the payment methodology described in subparagraph (B) and subject to the provisions of this paragraph, provide a home infusion therapy services temporary transitional payment under this part to an eligible home infusion supplier (as defined in subparagraph (F)) for items and services described in subparagraphs (A) and (B) of section 1861(iii)(2)) furnished during the period specified in clause (ii) by such supplier in coordination with the furnishing of transitional home infusion drugs (as defined in clause (iii)). (ii) Period specified For purposes of clause (i), the period specified in this clause is the period beginning on January 1, 2019, and ending on the day before the date of the implementation of the payment system under paragraph (1)(A). (iii) Transitional home infusion drug defined For purposes of this paragraph, the term transitional home infusion drug has the meaning given to the term home infusion drug under section 1861(iii)(3)(C)), except that clause (ii) of such section shall not apply if a drug described in such clause is identified in clauses (i), (ii), (iii) or (iv) of subparagraph (C) as of the date of the enactment of this paragraph. (B) Payment methodology For purposes of this paragraph, the Secretary shall establish a payment methodology, with respect to items and services described in subparagraph (A)(i). Under such payment methodology the Secretary shall— (i) create the three payment categories described in clauses (i), (ii), and (iii) of subparagraph (C)