Medicare Secondary Payer (MSP)
Medicare is a secondary payer when the beneficiary is covered by group insurance, Workers' Compensation, or if other third-party liability (no-fault, liability) applies.
SUBMITTING MSP CLAIMS TO MEDICARE: Claims that include MSP information must be submitted either electronically (ANSI ASC X12N 837 format) or by entering the MSP claim directly into the Fiscal Intermediary Standard System (FISS) via Direct Data Entry (DDE). Effective January 1, 2016, paper UB-04 claims can only be submitted if your agency meets the small provider exception, (CMS Pub. 100-04, Ch. 24 §90), or if the services are related to Black Lung.
CGS MSP Resources
Centers for Medicare & Medicaid Services (CMS) MSP Resources
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