Medicare Financial Management Manual (Pub. 100-06), Ch. 1 § 100.9
Medicare Secondary Payer (MSP) Function (Summary Level
100.9 - Medicare Secondary Payer (MSP) Function (Summary Level
Code 22000) - (Rev. 1, 08-30-02)
A1-1213.9, B1-4213.9
The MSP function includes the costs and workload(s) for recovery activities related to
working aged; disabled; ESRD; workers' compensation; auto/liability/no fault; and other
activities related to MSP and identified by CMS.