Follow These CMS Rules for Submitting Medicare Secondary Payer Claims

Why This Topic Matters

Correct MSP claim handling helps prevent denials, avoid billing errors, and reduce rework when Medicare is secondary to another insurer. The article is useful for teams that need a high-level understanding of CMS expectations for claim sequencing and supporting documentation.

Article Sections

1. CMS MSP billing tips

   An overview of CMS guidance for Medicare Secondary Payer claim submission and common billing issues seen in practice. The section introduces the main administrative steps addressed in the article.

2. Ask Patients About All of Their Insurers

   Guidance on collecting complete insurance information from patients before claims are submitted. The section addresses coordination issues that can affect payer order and claim processing.

3. Bill Primary Payer First, Not Simultaneously

   Discussion of claim sequencing when another insurer is primary and Medicare is secondary. The section also references CMS source material supporting the billing sequence.

4. Single Out Accident Claims

   General guidance on claims involving liability, no-fault, or workers' compensation records. The section covers how accident-related payer coordination is handled before Medicare submission.

5. Paper Claims? Include EOB

   Instructions for paper claim submission when primary payer documentation is required. The section notes the need for supporting remittance information with non-electronic claims.