IC 27-1-24.2-2: "Actual overpayment"

Sec. 2. As used in this chapter, "actual overpayment" means the portion of any amount paid for pharmacy or pharmacist services that:

(1) is duplicative because the pharmacy or pharmacist has already been paid for the services; or

(2) was erroneously paid because the services were not rendered in accordance with the prescriber's order, in which case only the amount paid for the portion of the prescription that was filled incorrectly or in excess of the prescriber's order is deemed an actual overpayment.