Medicare Secondary Payer Manual (Pub. 100-05), Ch. 5 § 40.8.6
MSP Outpatient Claims Involving Lab Charges Paid by Fee
40.8.6 - MSP Outpatient Claims Involving Lab Charges Paid by Fee
Schedule
(Rev. 11550; Issued: 08-12-22; Effective: 10-13-22; Implementation:10-13-22)
The following procedures describe how to prorate primary payments for MSP outpatient
claims that include charges for clinical diagnostic lab services (paid on the basis of 100
percent of a fee schedule) and charges for non-lab services (subject to the regular
deductible and coinsurance requirement) when a primary payer pays in part for the
services, without designating how much of its payment is for each type of service.