They aren’t allowed to publish them. And they do use denial and remark codes to indicate the services don’t justify the diagnosis. https://x12.org/codes/claim

They aren’t allowed to publish them. And they do use denial and remark codes to indicate the services don’t justify the diagnosis. https://x12.org/codes/claim-adjustment-reason-codes https://x12.org/codes/claim-adjustment-reason-codes https://x12.org/codes/remittance-advice-remark-codes https://x12.org/codes/remittance-advice-remark-codes