Skip to main content

N779 Remark Code: Original Claim Not Yet Finalized

N779 means a replacement or void claim was submitted before the original claim finalized. The payer cannot correct or cancel a claim still in process, so it asks you to resubmit once the original has been paid or denied.

Quick facts

Code
N779 (RARC N779)
Status
Active In use since November 1, 2016.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The replacement or void was not processed. This is a timing issue for the provider; nothing is owed by the patient.
Official description
Replacement/Void claims cannot be submitted until the original claim has finalized. Please resubmit once payment or denial is received.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N779 means

Replacement claims (resubmission code 7) and void claims (code 8) act on a claim the payer has already decided. If the original is still pending, being reviewed, or suspended, there is nothing final to replace or cancel. N779 tells you the correction arrived too early.

The payer does not queue it for later. You need to wait and send it again. It usually pairs with CARC 16 or CARC 129.

Common causes

  • A coding error was noticed right after submission, and a correction was sent immediately.
  • The original claim was pended for records or review, which took longer than expected.
  • Automated resubmission rules fired before the original remittance arrived.
  • Staff assumed the original had been denied because no response had come back.

How to fix it

  1. Check the original claim’s status with a claim status inquiry or the payer’s portal.
  2. Wait for it to finalize as paid or denied.
  3. Then resubmit the replacement (code 7) or void (code 8) in box 22 with the original claim number from the remittance.
  4. If the original was denied as unprocessable, the payer may want a new claim rather than a replacement.

How to prevent it

Only send replacements or voids after the original remittance posts. Configure automated workflows to check claim status first. For more on correcting claims without creating duplicates, see duplicate claim denials.

Codes that may appear with N779

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): The submission has an error, here premature timing.
  • CO-129 (Prior processing information appears incorrect.): Prior processing information could not be applied because the original was still pending.
  • N152 (Missing/incomplete/invalid replacement claim information.): The replacement claim information is missing or invalid.
  • N142 (The original claim was denied.): The original claim was denied, so submit a new claim rather than a replacement.
  • N380 (The original claim has been processed, submit a corrected claim.): The original claim has been processed, so a corrected claim may now be submitted.
  • N798 (Submit a void request for the original claim and resubmit a new claim.): Submit a void request for the original claim and then a new claim.

N779 FAQ

How do I know when the original claim has finalized?

When it appears on a remittance as paid or denied, or when a claim status inquiry shows a final status.

What if I need to stop the original claim from paying?

Some payers let you ask provider services to hold or cancel a pending claim. Otherwise, wait for it to finalize and then void or replace it.

Is the rejected replacement a problem for timely filing?

It usually does not count as a valid submission. Track the original claim's status and resubmit the correction promptly after it finalizes.