UndenyDenial code lookup
Search a CARC/RARC code to understand what it means and how to appeal it.
- CO-162,900/mo · guide ready
- CO-451,900/mo · guide ready
- CO-971,900/mo · guide ready
- CO-221,600/mo · guide ready
- CO-961,600/mo · guide ready
- PR-961,300/mo · guide ready
- OA-231,300/mo · guide ready
- CO-41,000/mo · guide ready
- CO-291,000/mo · guide ready
- CO-1091,000/mo · guide ready
- CO-1971,000/mo · guide ready
- CO-2521,000/mo · guide ready
- PR-2041,000/mo · guide ready
- OA-181,000/mo · guide ready
- CO-24880/mo · guide ready
- PR-31880/mo · guide ready
- CO-50720/mo · guide ready
- CO-151720/mo · guide ready
- CO-234720/mo · guide ready
- CO-253590/mo · guide ready
- PR-119590/mo · guide ready
- CO-119480/mo · guide ready
- PR-1480/mo · guide ready
- CO-11390/mo · guide ready
- CO-18390/mo · guide ready
- CO-59390/mo · guide ready
- CO-27320/mo · guide ready
- CO-204320/mo · guide ready
- PR-3320/mo · guide ready
- CO-8260/mo · guide ready
- CO-23260/mo · guide ready
- CO-55260/mo · guide ready
- CO-58260/mo · guide ready
- CO-222260/mo · guide ready
- CO-272260/mo · guide ready
- PR-2260/mo · guide ready
- PR-49260/mo · guide ready
- CO-5210/mo · guide ready
- CO-31170/mo · coming soon
- CO-39170/mo · coming soon
Frequently asked questions
- What are CARC and RARC codes?
- CARC (Claim Adjustment Reason Codes) explain why a claim was adjusted or denied; RARC (Remittance Advice Remark Codes) add supplemental detail. Together they tell you exactly why a payer didn't pay in full.
- Is the denial code lookup free?
- Yes, it's free with no account required. Search any denial code to get a plain-English explanation and the steps to fix or appeal it.
- How do I appeal a denied claim?
- Identify the denial code, correct the underlying issue (coding, eligibility, documentation, or fee schedule), and submit a written appeal with supporting evidence before the payer's deadline. Undeny's appeal generator can draft the letter for you.
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