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CARC
CO-123
CARC
General
Quick Facts
Code
CO-123
Type
CARC
Category
General
Status
Deactivated (historical)
What Does This Code Mean?
Payer refund due to overpayment. This code was deactivated by X12 (as of 06/30/2007).
Recommended Next Steps
- 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.
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Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.