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MISSISSIPPI DIVISION OF MEDICAID Eligibility Policy and Procedures Manual CHAPTER 102 – Non-Financial Requirements Page |111 Effective Month: July 2025 Residents of an IMD Under Age 21 Individuals under age 21 may receive Medicaid while residing in an IMD if receiving inpatient psychiatric services and are otherwise eligible for Medicaid. Inpatient psychiatric services may be furnished by a psychiatric hospital, a general hospital with a psychiatric program that meets the applicable conditions of participation, or an accredited psychiatric facility (PRTF). A child under age 19 may qualify as SSI, MAGI (including former foster children) or as an ABD disabled child in the Healthier MS Waiver, whichever is appropriate. An individual age 19 to age 21 may qualify as SSI, ABD in the Healthier MS Waiver or any other appropriate ABD category or as a former foster child. If the individual is receiving inpatient psychiatric services at the time the individual reaches age 21, the individual may receive Medicaid until turning age 22. Eligibility terminates the month after turning age 22 until released from the IMD. An IMD resident under age 21 retains IMD residency status until unconditionally released. Residents of an IMD Between the Ages of 21 and 65 Individuals between the ages of 21 and 65 are not eligible to receive any Medicaid benefits while residing in an IMD. The only exception is as follows: A Medicaid-eligible pregnant woman who is receiving treatment for a substance use disorder (SUD) in an IMD is eligible to receive Medicaid covered services provided outside the IMD. Medicaid will continue through the 12 month postpartum period. Eligibility for pregnancy- related Medicaid may be determined for the retroactive period but not prior to 10/01/2019, which is the effective date of this IMD exception provision. If an individual is an inpatient in an IMD for only a portion of a month, the individual can be Medicaid-eligible for the entire month, if otherwise eligible (not limited to pregnancy-related Medicaid coverage). When the individual is on convalescent leave (trial home visit) or conditional release (released on condition of receiving outpatient treatment or some other comparable