1. Short title This Act may be cited as the Improving Coverage for Substance Use Disorder Recovery Expansion Act . 2. State option to provide medicaid coverage for substance use disorder treatment services; modification of the IMD exclusion Section 1905 of the Social Security Act ( 42 U.S.C. 1396d ) is amended— (1) in subsection (a)— (A) in paragraph (28), by striking and after the semicolon; (B) by redesignating paragraph (29) as paragraph (30); and (C) by inserting after paragraph (28), the following new paragraph: (29) substance use disorder treatment services (as defined in subsection (ee) and furnished in accordance with that subsection) for individuals over 20 years of age and under 65 years of age, that are offered as part of a full continuum of evidence-based treatment services provided under the State plan for individuals with substance use disorders; and ; and (D) in the subdivision (B) that follows paragraph (30) (as redesignated by subparagraph (B) of this paragraph), by inserting (other than substance use disorder treatment services provided in accordance with paragraph (29) and subsection (ee)) after care or services ; and (2) by adding at the end the following new subsection: (ee) Substance use disorder treatment services (1) In general For purposes of subsection (a)(29), the term substance use disorder treatment services means inpatient services provided— (A) to an individual for the purpose of treating a substance use disorder that are furnished for not more than 90 days in any 12-month period to an individual who— (i) has received initial assessments to determine the appropriate level of care, length of stay, and setting for such care for the individual based upon criteria established by the Secretary in consultation with the multidimensional criteria of the American Society of Addiction Medicine