Medicaid; expand eligibility under federal Affordable Care Act.

HB 509 would expand Mississippi's Medicaid program to cover low-income adults under age 65 who are not pregnant, not enrolled in Medicare, and have incomes at or below 133% of the federal poverty level. This change would allow more Mississippi residents - particularly working adults and families currently excluded from Medicaid - to qualify for health coverage under the state's program. The bill amends Mississippi Code Section 43-13-115 to implement the Medicaid expansion authorized by the federal Affordable Care Act. The policy change directly affects non-elderly adults in Mississippi with incomes up to 133% of the federal poverty level who would otherwise lack access to Medicaid.