; (3) recommendations for States on available financing options under the Medicaid program under title XIX of such Act and under the Children’s Health Insurance Program under title XXI of such Act for Children’s Health Insurance Program Health Services Initiative funds for parents with substance use disorders, infants with neonatal abstinence syndrome, and home visiting services; and (4) guidance and technical assistance to State Medicaid agencies regarding additional flexibilities and incentives related to screening, prevention, and post-discharge services, including parenting supports. (b) GAO study Not later than 1 year after the date of the enactment of this Act, the Comptroller General of the United States shall conduct a study, and submit to Congress a report, addressing gaps in coverage for pregnant women with substance use disorder under the Medicaid program under title XIX of the Social Security Act, and gaps in coverage for postpartum women with substance use disorder who had coverage during their pregnancy under the Medicaid program under such title. 1007. Medicaid health homes for opioid-use-disorder Medicaid enrollees (a) Extension of enhanced FMAP for certain health homes for individuals with substance use disorders Section 1945 of the Social Security Act ( 42 U.S.C. 1396w–4 ) is amended— (1) in subsection (c)— (A) in paragraph (1), by inserting subject to paragraph (4), after except that,