Executing and Testing MSPPAY Software

50.1.4 - Executing and Testing MSPPAY Software (Rev. 11550; Issued: 08-12-22; Effective: 10-13-22; Implementation:10-13-22) A/B MACs (Part B) and DME MACs receive the MSP software through their standard system along with the Medicare Secondary Payment Technical Manual documenting, and describing the execution of the MSPPAY Module(s). The input data elements and output data elements required are referenced in these manuals. The Medicare Integrated Systems Testing (MIST) contractor is responsible for testing and verifying the accuracy of the MSPPAY software when updates are implemented. A/B MACs (Part B) and DME MACs also test the MSPPAY software independently and review the results.