CMS: Carriers use new IDs to route Medigap claims

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Note:  The following article synopsis was NOT provided by HCPro. It was created by Find-A-Code/innoviHealth.

Article Overview

This article covers CMS’s shift to a new Medigap coordination identifier system for claims crossover, including the administrative changes involved, the affected claim-routing process, and where providers and billing staff can find the updated payer information. It is relevant to billing professionals, claims submitters, and revenue cycle staff who work with Medicare secondary payer workflows and CMS claims forms.

Why This Topic Matters

Accurate payer routing is essential when Medicare claims must be forwarded to a Medigap insurer. Understanding the updated CMS identifier process helps reduce claim submission errors and supports smoother coordination of benefits.

What You Will Learn

  • How CMS changed the Medigap claims crossover identification process
  • What administrative elements are involved in the updated coordination workflow
  • Where to look for updated payer routing information from CMS
  • Which claim-handling touchpoints are mentioned for paper and electronic submissions

Who Should Read This

  • Medical billers
  • Claims processors
  • Revenue cycle staff
  • Practice managers
  • Medicare billing specialists

Code Ranges Discussed

  • UNSPECIFIED: 55000-59999

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