CO-45 on your EOB? Start here.
CO-45 means the provider charged more than your plan allows. In most cases, an in-network provider can't bill you for that difference. Use these free tools in order.
- 1. Understand it What CO-45 meansThe charge was above the price your plan agreed with the provider. Usually you don't owe that difference.Open
- 2. Check your bill Bill & EOB DecoderCompare your bill with your EOB in plain language and spot charges you shouldn't pay.Open
- 3. Read the codes Remark Code DecoderLook up CO-45 and any other codes on your EOB, with ranked next steps.Open
- 4. Push back Appeal Letter BuilderIf you were billed for the difference, draft a clear letter asking for it to be removed.Open
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Educational information, not legal or medical advice. Confirm details with your insurer or a licensed professional. See our medical disclaimer.