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CO-11
Recoverability: Medium
The diagnosis is inconsistent with the procedure
The payer's edits found that the diagnosis code does not support the procedure billed. On dental claims this is most common when billing medical payers or dental plans that require ICD-10 codes on the 837D.
Why this happens on dental claims
- Medical claims for oral surgery, pathology, trauma, or sleep appliances submitted with an unspecified or mismatched ICD-10 code
- Periodontal procedures billed with a caries diagnosis, or surgical extractions submitted without a diagnosis that supports surgery
- Diagnosis pointers on multi-line claims mapping the wrong diagnosis to the procedure
How to appeal CO-11
- Have the treating dentist confirm the clinical diagnosis from the chart, not from the claim form
- Correct the ICD-10 code or the diagnosis pointer and submit a corrected claim
- If the original diagnosis was correct, appeal with chart notes and radiographs showing why the diagnosis supports the procedure
- Cite the payer's own coverage policy for the procedure when it lists the diagnosis codes it accepts
How to prevent it
- Maintain a short list of accepted ICD-10 codes for the procedures you routinely cross-bill to medical plans
- Audit diagnosis pointers on multi-line claims before submission
Related codes
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