(1) (a) Subject to available appropriations, the state department is authorized to seek federal authorization to and to establish a medicaid buy-in program or programs for:
(I) Disabled children; or
(II) Disabled adults who do not qualify for the medicaid buy-in program established pursuant to part 14 of article 6 of this title.
(b) The medicaid buy-in program or programs established pursuant to paragraph (a) of this subsection (1) may provide for premium and cost-sharing charges on a sliding fee scale based upon a family's income.
(2) The state board shall promulgate rules consistent with any federal authorization to implement and administer the medicaid buy-in program or programs established pursuant to paragraph (a) of subsection (1) of this section.