; (B) in paragraph (83), by striking the period at the end and inserting ; and ; and (C) by inserting after paragraph (83) the following new paragraph: (84) at the option of the State and in accordance with paragraph (2) of subsection (nn), beginning January 1, 2019, for making medical assistance available on an inpatient or outpatient basis at a residential pediatric recovery center (as defined in paragraph (1) of such subsection) for infants who are under 1 year of age with neonatal abstinence syndrome. ; and (2) by adding at the end the following new subsection: (nn) Residential pediatric recovery center (1) Definition For purposes of subsection (a)(84), the term residential pediatric recovery center means a center or facility that— (A) provides comprehensive treatment to infants who are under 1 year of age with a diagnosis of neonatal abstinence syndrome, which includes at least access to early and periodic screening, diagnostic and treatment; physician and nursing services; supportive counseling; comprehensive evaluation and assessment and service planning by State licensed counselors or social workers; targeted case management services by State licensed or educated professionals; education and supportive counseling and case management of family members of such infants; room and board costs for such infants; and facilitation of arrangements within such facilities whereby such infants reside with their mother when applicable