; and (2) by adding at the end the following new subsection: (nn) Previously undescribed individuals Individuals described in this subsection are individuals who are— (1) described in subclause (XXIII) of subsection (a)(10)(A)(ii); and (2) are not described in any other subclause of such subsection or any other provision in this Act which provides for eligibility for medical assistance. . (b) Provision of at least minimum coverage (1) In general Section 1902(k)(1) of the Social Security Act ( 42 U.S.C. 1396a(k)(1) ) is amended by inserting or an individual described in subsection (nn) after an individual described in subclause (VIII) of subsection (a)(10)(A)(i) each place it appears. (2) Conforming amendment Section 1903(i)(26) of the Social Security Act ( 42 U.S.C. 1396b(i)(26) ) is amended by striking individuals described in subclause (VIII) of subsection (a)(10)(A)(i) and inserting individuals described in subsection (a)(10)(A)(i)(VIII) or (nn) of section 1902 . (c) Federal financial participation in buy-In program (1) Enhanced match for administrative expenses Section 1903(a) of the Social Security Act ( 42 U.S.C. 1396b(a) ) is amended— (A) by redesignating paragraph (7) as paragraph (8); and (B) by inserting after paragraph (6) the following new paragraph: (7) an amount equal to 90 percent of the sums expended during the quarter which are attributable to reasonable administrative expenses related to the administration of a Medicaid buy-in program for individuals described in section 1902(a)(10)(A)(ii)(XXIII)