CO-55Contractual Adjustment
Procedure code billed is inconsistent with place of service
What this code means
The code your provider used indicates a service that does not match where the service was performed. For example, a hospital code billed for an office visit.
What to do next
Ask your provider to verify the place of service code on the claim. If incorrect, ask them to correct and resubmit. This is a billing error, not a clinical denial.
Appeal outlook: Very high when corrected
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