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Denial workflow
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Common CARCs
View all CARCs →CARC16The payer could not process the claim as submitted because required information was missing or the claim had a submission or billing error. A remark code should accompany this code to explain what is missing.CARC29The claim was submitted after the payer's filing deadline, so the payer denied or reduced the claim.CARC18The payer identified the claim as an exact duplicate of a claim/service already processed.
Common RARCs
View all RARCs →Denial Guides
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1 topicThe front-door decision: is this a correction, an appeal, or no action?
Filing
3 topicsSubmission deadlines and claims that need correction or documentation.
Coverage
3 topicsWhether the service is covered under the patient's plan.
Billing
3 topicsCoding, duplicates and bundled or included services.
Payer & patient
4 topicsCOB, the wrong payer, patient responsibility and credentialing.