✨ EDI Code Intelligence

EDI Code Intelligence Lab — CARC & RARC Denial Code Database

Search by code number or keyword. Every result includes root causes, action steps, appeal tips, and prevention guidance.

🔄 Database last updated: April 2026  ·  1,944 enriched denial profiles  ·  CARC/RARC codes sourced from ASC X12
⚠️ Do not enter patient names, dates of birth, or any other patient-identifying information (PHI) into this tool.
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This tool is designed to help you understand denial codes and build a starting point for resolution. Every denial has context that only the payer and the claim can provide. Before submitting an appeal or corrected claim, verify the payer's published policies and contact them directly with questions about your specific situation.
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This database is updated 3x per year in accordance with ASC X12 and CMS release schedules. Missing a code or spotted an error? Let us know.
What You Get

Complete Denial Code Intelligence

Search by code number or keyword. Every result gives you a full profile — not just a definition.

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Denial Description

Clear, plain-language explanation of what the code means and why it was applied.

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Risk Level

Each code is rated by severity so you can prioritize the denials that cost you the most.

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Root Causes

Understand the upstream process failures that triggered the denial in the first place.

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Step-by-Step Action Plan

Concrete steps your team can take right now to resolve the denial and recover revenue.

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Appeal Tips

Specific guidance on how to build a successful appeal for each denial type.

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Prevention Strategy

Process changes and safeguards to prevent the denial from recurring.