RARC N522 Active Supplemental

RARC N522: Duplicate of a Previously Processed Claim

What This Means

The payer flagged this claim as a duplicate of one already processed or pending, including crossover claims. This can result from accidental resubmission, electronic submission glitches, or the primary payer auto-forwarding a crossover while the provider also submits to the secondary. Check the original claim's status before resubmitting, and if this is truly a unique claim, append documentation showing why it is not a duplicate.

Disclaimer
This content is for informational purposes only. Always verify against your payer contracts and current coding guidelines.

Commonly Paired With

RARC N522 commonly appears alongside these CARC denial codes:

Code Name
CO-14 Date of Birth Follows Date of Service →
CO-18 Exact Duplicate Claim or Service (also OA-18) →
CO-107 Related or Qualifying Service Not Identified →
CO-129 Prior Processing Information Incorrect →
CO-150 Documentation Does Not Support Level of Service →
CO-152 Documentation Does Not Support Length of Service →
CO-174 Service Not Prescribed Prior to Delivery (also OA-174) →
CO-176 Prescription Not Current (also OA-176) →
CO-246 Non-Payable Code — Required Reporting Only →

Sources

  1. X12.org