Mississippi Code Title 83. Insurance § 83-41-219

(1) If any health insurance issuer or other health insurance benefit payer limits the time in which a health care provider or other person is required to submit a claim for payment, the health insurance issuer or other health insurance benefit payer shall have the same time limit following payment of the claim to perform any review or audit for reconsidering the validity of the claim and requesting reimbursement for payment of an invalid claim or overpayment of a claim.

(2) If any health insurance issuer or other health insurance benefit payer does not limit the time in which a health care provider or other person is required to submit a claim for payment, the health insurance issuer or other health insurance benefit payer may not request reimbursement or offset another claim payment for reimbursement of an invalid claim or overpayment of a claim more than twelve (12) months after the payment of an invalid or overpaid claim.

(3) Nothing in this section shall apply to: