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N437 Remark Code: Charges Reconsidered if Injury Accepted

N437 is an alert that these charges will be reconsidered if the injury claim is accepted. The workers' compensation or property and casualty carrier has not accepted the injury yet, so it is holding off on paying these charges until it decides.

Quick facts

Code
N437 (RARC N437)
Status
Active In use since July 1, 2008.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • OA (Other Adjustment): The charges are unresolved while compensability is pending, not a final denial or patient balance.
  • CO (Contractual Obligation): Some carriers show the held amount as a provider adjustment for now. Do not write it off permanently while the injury claim is open.
Official description
Alert: If the injury claim is accepted, these charges will be reconsidered.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N437 means

N437 is informational. The carrier is telling you it has not accepted the injury claim, and that these particular charges will get another look if it does. Until then, the charges are unpaid but not permanently denied.

You will usually see it with a code indicating an investigation or a pending dispute, such as CARC P8 or P11.

What to do

  1. Keep the balance open and flag it as awaiting a compensability decision.
  2. Follow up with the adjuster at set intervals and record the status each time.
  3. Keep your filing proof. Save the original submission and this remittance in case you need to show timely filing later.
  4. Act on the outcome. If the claim is accepted, confirm the charges are reprocessed. If it is denied, move to the patient’s health coverage with the denial.

The main risk with N437 is forgetting about the account. A tickler or follow-up queue for pending injury claims keeps these balances from aging silently.

Codes that may appear with N437

  • CO-P8 (Claim is under investigation.): The claim is under investigation.
  • OA-P11 (The disposition of the related Property & Casualty claim (injury or illness) is pending due to litigation.): The related property and casualty claim is pending due to litigation.
  • N436 (The injury claim has not been accepted and a mandatory medical reimbursement has been made.): The injury claim is not accepted, but a mandatory medical reimbursement was made.
  • CO-P4 (Workers' Compensation claim adjudicated as non-compensable.): Used when the carrier finally decides the claim is non-compensable.

N437 FAQ

Do I need to resubmit when the claim is accepted?

Some carriers reprocess automatically once compensability is accepted; others ask for resubmission. Confirm with the adjuster.

What if the injury claim is denied?

Get the denial in writing. You can then bill the patient's health plan, or the patient if rules allow, with the denial attached.

How long can the decision take?

It depends on the jurisdiction and the case. Litigation or disputed injuries can take much longer than routine investigations.