Miss. Code Ann. § 43-13-307

Any applicant or recipient, inclusive of the grantee relative of a dependent child who refuses to cooperate with or to provide reasonable assistance to the Division of Medicaid against a liable third party in accordance with Section 43-13-125, Mississippi Code of 1972, or fails to pay over to the Division of Medicaid third-party payments as provided in this article, or fails or refuses to cooperate with the local county department of public welfare shall not be eligible for Medicaid benefits under the Mississippi Medicaid Law.