CO 8: Wrong Provider Type
The procedure does not match the provider type or specialty on file.
Compare the taxonomy code on the claim against the rendering provider's enrolment, then correct whichever is wrong.
See a finished review first
- No patient data
- No BAA
- No charge
- No pitch
What CO 8 means
CO: Contractual obligation. The provider absorbs it and cannot bill the patient.
So the balance cannot move to the patient. Either the appeal recovers it or the practice absorbs it. That makes the appeal decision the whole decision on this line.
Is It Worth Appealing?
Fix and resubmit. This is a correction, not an appeal. Appealing burns the deadline.
Why It Fires
In the order we see it.
The taxonomy code on the claim does not match the payer's record for that provider.
The service was billed under a provider not credentialed to perform it.
How to Fix CO 8, Step by Step
Compare the taxonomy code on the claim against the rendering provider's enrolment, then correct whichever is wrong.
- 1Step 1: Read the remark code. Find the remark code printed next to CO 8 on the 835 or EOB. It says what the payer wants back.
- 2Step 2: Find the cause. Match the denial to one of the 2 causes in Why It Fires above, and fix that one.
- 3Step 3: Do this. Compare the taxonomy code on the claim against the rendering provider's enrolment, then correct whichever is wrong.
- 4Step 4: Attach the documentation. The correct taxonomy code, or the credentialing record for the rendering provider.
The common mistake. Do not resubmit unchanged. Nothing about the claim will look different to the payer's edit.
Free: the Denial Code Appeal Playbook. 53 codes on one sheet: appeal, fix and resubmit, or let it go, and what to attach. Get the playbook
CO 8 description
The procedure does not match the provider type or specialty on file.
The procedure does not match the provider type or specialty on file. So the balance cannot move to the patient. Either the appeal recovers it or the practice absorbs it. That makes the appeal decision the whole decision on this line.
This is our plain-English wording, not the official X12 text. X12 asserts copyright over the published descriptions, so we write our own and say what it means for the money rather than restating the code.
Where this comes from. This is our own reading of the code, not the payer's and not a copy of the standards text. We classify it from how these denials actually resolve. Where we are unsure, we say so rather than guessing.
Related Codes
Your Questions Answered
What does CO 8 mean?
The procedure does not match the provider type or specialty on file. Contractual obligation. The provider absorbs it and cannot bill the patient.
Can you appeal CO 8?
Fix and resubmit. Compare the taxonomy code on the claim against the rendering provider's enrolment, then correct whichever is wrong.
Why does CO 8 happen?
The taxonomy code on the claim does not match the payer's record for that provider. The service was billed under a provider not credentialed to perform it.
What documentation wins a CO 8 appeal?
The correct taxonomy code, or the credentialing record for the rendering provider.
How do I fix a CO 8 denial?
Step 1: Read the remark code. Find the remark code printed next to CO 8 on the 835 or EOB. It says what the payer wants back. Step 2: Find the cause. Match the denial to one cause: The taxonomy code on the claim does not match the payer's record for that provider. The service was billed under a provider not credentialed to perform it. Step 3: Do this. Compare the taxonomy code on the claim against the rendering provider's enrolment, then correct whichever is wrong. Step 4: Attach the documentation. The correct taxonomy code, or the credentialing record for the rendering provider.
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