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N880 Remark Code: Claim Closed, Reprocessed Under New Number

N880 means the payer closed the original claim because the submitted data changed, and it will process the adjustment as a new claim with a new claim number. You should see a separate remittance for the replacement claim.

Quick facts

Code
N880 (RARC N880)
Status
Active In use since November 1, 2022.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): Amounts reversed on the closed original claim. They are an accounting reversal, not a loss, while the replacement claim is processed.
  • OA (Other Adjustment): Some payers report the reversal of the original claim as an other adjustment. Match it to the new claim rather than posting it as a denial.
Official description
Original claim closed due to changes in submitted data. Adjustment claim will be processed under a new claim number.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N880 means

N880 describes a housekeeping step on the payer’s side. Something in the data on file for the claim changed, often because you sent a corrected claim or because the payer updated information after an adjustment request. Instead of editing the original claim, the payer closed it and will adjudicate the change as a new claim with its own claim number.

On your ERA, the original claim may show as reversed or zeroed out with N880. The replacement claim arrives separately, sometimes in the same payment cycle and sometimes later.

Common causes

  • You submitted a replacement claim (frequency code 7) that changed key fields.
  • A payer-initiated adjustment altered data the system treats as fixed on a claim record.
  • A retroactive eligibility or provider record update forced reprocessing.

What to do

  1. Do not write off the reversal. Treat it as pending until the new claim posts.
  2. Link the two claims in your practice management system, noting the old and new payer claim numbers.
  3. Watch for the new remittance. Post it against the same charge.
  4. Follow up if the replacement claim has not appeared within the payer’s normal processing time.
  5. Avoid resubmitting. A fresh claim can trigger a duplicate denial. See duplicate claim denials.

Codes that may appear with N880

  • CO-A1 (Claim/Service denied.): May appear on the closed original claim as a general claim-level adjustment; N880 explains why.
  • N770 (The adjustment request received from the provider has been processed.): Your adjustment request was processed and the original claim itself was adjusted.
  • N779 (Replacement/Void claims cannot be submitted until the original claim has finalized.): A replacement or void was sent before the original claim finalized.
  • N798 (Submit a void request for the original claim and resubmit a new claim.): The payer wants a void of the original and a new claim, rather than doing it for you.
  • N938 (Alert: Do not resubmit.): The payer will reprocess automatically and asks you not to resubmit.

N880 FAQ

Do I need to submit a new claim after N880?

Usually not. The remark says the payer will process the adjustment under a new claim number. Resubmitting can create a duplicate.

Why did my claim number change?

Some payers cannot rework a claim in place once key data changes. They close the original record and open a new one that carries the corrected information.

How do I find the new claim?

Check later remittances or the payer's claim status tools by patient, date of service, and billed amount. Contact the payer if it does not appear.