Remittance advice remark code
Remark code N657 meaning
RARC N657: The payer says these services should be billed with a different, appropriate code.
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- Remark code
- RARC N657
- Short name
- Bill with the right code
- Plain meaning
- The payer says these services should be billed with a different, appropriate code.
- Kind
- Adds detail to the reason code on the same line.
Plain-English summary written by Rivvi. X12 owns the RARC list and its exact wording, which is not reproduced here. Read it on the X12 RARC list (list dated July 1, 2026, checked October 23, 2026). This page does not decide how a claim is paid.
What to check before resubmitting
- Find the code the payer expects for the service and rebill.
Reason codes it often comes with
Related remark codes
Related pages
Questions
What does remark code N657 mean?
The payer says these services should be billed with a different, appropriate code. This is Rivvi's plain-English summary of RARC N657. X12's exact wording is on x12.org.
What should I do about N657?
Find the code the payer expects for the service and rebill.
Is N657 a denial?
A remark code adds detail to the reason code on the same line. The reason code (CARC) and its group code decide what was denied or adjusted. It is often paired with reason codes 16, 4.
What is the difference between a RARC and a CARC?
A remittance advice remark code (RARC) adds detail to a claim adjustment reason code (CARC). The CARC says why the line was adjusted. The RARC often says what to fix.