CMS Manual System Pub 100-04 Medicare Claims Processing Common Working File (CWF) Unsolicited Response Adjustments for Certain Claims Denied Due to an Open Medicare Secondary Payer (MSP) Group Health Plan (GHP) Record Where the GHP Record was Subsequently Deleted
Guidance for the Coordination of Benefits Contractor deleting invalid group health plan records from the CWF. .
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: September 23, 2005
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