Claim Adjustment Reason Code (CARC) Update for Medicare Secondary Payer (MSP) Claims Processing
All Medicare contractors and associated SSMs must utilize CAS segment adjustments on the 837 Institutional and Professional claims when adjudicating MSP claims. Shared System Maintainers and contractors must make the necessary changes on a regular basis as per this MSP CAS update change request. The attached recurring Update Notification applies to chapter 5, section 40.7.3.
New / Revised Material
Effective Date: October 1, 2009
Implementation Date: October 5, 2009
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: April 24, 2009
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