To amend title XIX of the Social Security Act to provide for Medicaid coverage protections for pregnant and post-partum women while receiving inpatient treatment for a substance use disorder, and for other purposes.

This bill requires the Centers for Medicare & Medicaid Services to develop guidance for states on neonatal abstinence syndrome services, including coverage options under Medicaid and the Children's Health Insurance Program (CHIP). The Government Accountability Office must also study Medicaid coverage gaps for pregnant and postpartum women with substance-use disorders.