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CO-A3 - Denial Journal
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CARC

CO-A3

CARC Coordination of Benefits
Quick Facts
Code
CO-A3
Type
CARC
Category
Coordination of Benefits
Status
Deactivated (historical)

What Does This Code Mean?

Medicare Secondary Payer liability met. This code was deactivated by X12 (as of 10/16/2003).

Recommended Next Steps

  1. This is a historical/deactivated code — no longer used on current claims. If seen on an old remittance, refer to the replacement code noted above where available.

Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.

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