1. Short title This Act may be cited as the Expanding Access to Inpatient Mental Health Act . 2. Medicaid coverage for services for the treatment of psychiatric or substance use disorders furnished to certain individuals in an institution for mental diseases (a) In general Section 1905(a) of the Social Security Act ( 42 U.S.C. 1396d(a) ) is amended— (1) in paragraph (29), by striking ; and at the end; (2) by redesignating paragraph (30) as paragraph (31); (3) by inserting after paragraph (29) the following new paragraph: (30) services for the treatment of psychiatric or substance use disorders furnished to any individual who is eligible for medical assistance under the State plan (or a waiver of such plan), enrolled with a medicaid managed care organization (as defined in section 1903(m)(1)(A)) or a prepaid inpatient health plan described in section 1903(m)(9)(D)(iii)(I), and is a patient in an institution for mental diseases; and ; and (4) in the matter preceding the subdivision (A) following paragraph (31), as redesignated by paragraph (2), by striking as otherwise provided in paragraph (16) and inserting as otherwise provided in paragraphs (16) and (30) . (b) Conforming amendment Section 1903(m)(7) of the Social Security Act ( 42 U.S.C. 1396b(m)(7) ) is amended by inserting before the period at the end the following: , and made with respect to services described in such section provided before the date of enactment of the Expanding Access to Inpatient Mental Health Act . (c) Effective date The amendments made by subsection (a) shall apply with respect to medical assistance provided on or after the date of the enactment of this Act.