Crossover Claims Resource Page
NOTE: These articles contain information that may now be out-of-date or may have been updated with a more current article or policy. Primarily, 4010A1 will be the format required for ANSI X.12 after October 16, 2003.
- Alert Regarding End of Eligibility-File Based Crossover Processes Revised - 12.05.05
- Coordination of Benefits Agreement (COBA) Detailed Error Report Notification Process Medlearn Matters PDF Document MM3709 - 03.01.05
- The Centers for Medicare & Medicaid Services CMS Consolidation of the Claims Crossover Process - Medlearn Matters PDF Document SE0504 - 02.04.05
- Claims Crossover Process Transition to Consolidated Contractor - 11.20.03
- Additional April 2003 system changes for Coordination of Benefits crossover claims - 03.10.03
- April 2003 system changes for Coordination of Benefits crossover claims - 02.11.03
- Beginning October 7, 2002, X12 N 837 (4010) COB transactions will be updated to meet specific HIPAA data requirements. As a result of this upgrade the X12N 837 (4010) COB transactions are to be generated with complete, HIPAA compliant data elements. Read the full article here. - 9.27.02
- Notifying Affected Parties Regarding Changes to the Mandatory Medigap: Updates to the COBA Medigap claim-based ID listing. - 7.19.07
- MCS Crossover Process Information - 1.20.05

