Submitting your Medicare Secondary Payer (MSP) claims electronically is simple.

Medicare needs just three additional data elements from you so your claim will process as MSP:

1. The primary insurance allowed amount,
2. The primary insurance paid amount, and
3. The "obligated to accept assignment in full" (OTAF) amount, if any.

You do not have to include the primary insurance remittance notice when submitting an MSP claim electronically. Just keep the notice on file in case Medicare asks to see a copy.

You can find billing instructions for MSP in the Medicare Secondary Manual (PDF). Or, you can contact the TrailBlazer Electronic Data Interchange (EDI) Department at (866) 749-4302 for help. Information about electronic billing is on the TrailBlazer Web site.

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