RARC N1Alert

You have the right to appeal this determination; follow your contract or plan's appeal procedures.

This is an informational alert code and isn't tied to a specific claim adjustment.

Related Alert codes

Frequently asked questions

What does RARC N1 mean?

You have the right to appeal this determination; follow your contract or plan's appeal procedures.

Is RARC N1 a supplemental or alert code?

N1 is an Alert code — it's informational and isn't tied to a specific claim adjustment.

CARC codes maintained by X12 (x12.org). Descriptions on this site are original reference interpretations. RARC codes maintained by CMS. Always verify codes with authoritative sources before making billing decisions.