Medicare Program Integrity Manual (Pub. 100-08), Ch. 8 § 8.2.1.1
Definition of Overpayment Assessment Terms
8.2.1.1 – Definition of Overpayment Assessment Terms
(Rev. 670, Issued: 08-19-16, Effective: 11-23-16, Implementation: 11-23-16)
A. Actual Overpayment
An actual overpayment is, for those claims reviewed, the sum of payments (based on the
amount paid to the provider/supplier and Medicare approved amounts) made to a
provider/supplier for services which were determined to be medically unnecessary or
incorrectly billed.
B. Projected Overpayment
A projected overpayment is the numeric overpayment obtained by projecting an
overpayment from statistical sampling for overpayment estimation to all similar claims in
the universe under review.