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N517 Remark Code: Resubmit as a New Claim

N517 means the payer wants you to resubmit a new claim that includes the information it requested. The original claim will not be reopened or corrected; you need to submit a fresh claim with the missing or corrected information.

Quick facts

Code
N517 (RARC N517)
Status
Active In use since March 1, 2009.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The claim was denied for information the provider must supply. The amount is not billable to the patient while it can be corrected.
Official description
Resubmit a new claim with the requested information.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N517 means

N517 is an instruction, not an explanation of what went wrong. It pairs with a reason code, and sometimes another remark, that identifies the missing or incorrect information. What N517 adds is the method: submit a new claim containing that information.

That matters because the usual reflex is to send a corrected claim. Some payers will not accept a replacement for a claim they denied or treated as unprocessable, and a corrected claim may bounce back again.

Common causes

  • The payer asked for additional information and closed the original claim when it did not arrive.
  • The original claim had errors serious enough that the payer will not adjust it in place.
  • The payer’s system treats the original as denied, so there is nothing to replace.

How to fix it

  1. Read every code on the line to identify exactly what information the payer wants.
  2. Gather and correct the data, whether it is a missing identifier, a document, or a claim field.
  3. Create a new original claim with the corrected information. Do not use resubmission code 7 or reference the old claim number unless the payer says to.
  4. Attach any documents the payer requested, using its attachment process.
  5. Submit promptly. See the timely filing guide for how filing limits apply to resubmissions.

How to prevent it

Track each payer’s rules for when to send corrected versus new claims, and put them in your denial workflow notes. The underlying reason code usually points to front-end data that can be fixed before the first submission.

Codes that may appear with N517

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): The claim lacked information or had billing errors that the new claim should correct.
  • CO-226 (Information requested from the Billing/Rendering Provider was not provided or not provided timely or was insufficient/incomplete.): Information requested from the provider was not provided or was insufficient.
  • CO-A1 (Claim/Service denied.): A general claim denial where remark codes explain the next step.
  • N142 (The original claim was denied.): The original claim was denied; resubmit a new claim, not a replacement claim.
  • N185 (Alert: Do not resubmit this claim/service.): The opposite instruction: do not resubmit this claim.
  • MA130 (Your claim contains incomplete and/or invalid information, and no appeal rights are afforded because the claim is unprocessable.): Claim returned as unprocessable for incomplete or invalid information, with no appeal rights.

N517 FAQ

Is a new claim different from a corrected claim?

Yes. A corrected or replacement claim references the original claim number and usually uses resubmission code 7. A new claim is submitted as an original, without replacing anything. N517 asks for the new claim.

Will the new claim be denied as a duplicate?

It should not be if the original was denied and the payer asked for a new claim. Including the requested information makes it clearly different. If it is denied as a duplicate, contact the payer.

Does timely filing still apply?

Yes. The new claim generally must still meet the payer's filing limit, so resubmit promptly. See the timely filing guide for how payers count deadlines.