Remittance advice remark code

Remark code N1 meaning

RARC N1: You may appeal this decision in writing, within the time limit, using the steps in your contract or the plan documents.

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Remark code
RARC N1
Short name
You may appeal in writing
Plain meaning
You may appeal this decision in writing, within the time limit, using the steps in your contract or the plan documents.
Kind
Alert. Information only, not a denial by itself.

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

  1. Note the deadline and send the appeal with supporting records.

Related remark codes

Related pages

Questions

What does remark code N1 mean?

You may appeal this decision in writing, within the time limit, using the steps in your contract or the plan documents. This is Rivvi's plain-English summary of RARC N1. X12's exact wording is on x12.org.

What should I do about N1?

Note the deadline and send the appeal with supporting records.

Is N1 a denial?

N1 is an informational remark (an alert). It does not deny the claim by itself.

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.

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