A/B MACs and DME MACs Prepayment Processing Requirements

30.3 – A/B MACs and DME MACs Prepayment Processing Requirements (Rev. 11755, Issued:12-21-22, Effective: 01-23-23, Implementation: 01-23-23) The MSP Manual provides a technical guide for A/B MACs and DME MACs to process any prepayment activities that allow MSP provisions to occur appropriately and by statute. These instructions and processes are outlined in Chapter 5 of the Medicare Secondary Payer Manual with the ECRS Web User Guide and ECRS Quick Reference Card as separate documents for easy reference.