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N624 Remark Code: Workers' Comp Claim Withdrawn

N624 means the workers' compensation claim associated with these services has been withdrawn. With no active claim, the workers' comp carrier won't pay, so the charges need to be billed to the patient's other coverage.

Quick facts

Code
N624 (RARC N624)
Status
Active In use since July 15, 2013.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • OA (Other Adjustment): The carrier has no liability without an active claim. The balance should move to another payer.
  • PR (Patient Responsibility): Some carriers show the amount as patient responsibility; check for health insurance first.
Official description
The associated Workers' Compensation claim has been withdrawn.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N624 means

A workers’ compensation carrier pays only on an open, active claim. N624 tells you the claim linked to your bill has been withdrawn, so there is no workers’ comp coverage for these services. This is different from a denial on the merits: the claim simply isn’t being pursued.

It may appear with CARC P4 or P2.

What to do

  1. Confirm the withdrawal with the adjuster and ask for written confirmation, including the effective date.
  2. Tell the patient and collect their health insurance information.
  3. Bill the health plan, noting on the claim that the condition is not being handled under workers’ comp. Update CMS-1500 box 10a if the plan requires it, and attach the withdrawal confirmation if asked.
  4. Check filing limits at the health plan right away, since time has likely passed. See timely filing denials.
  5. Bill the patient only when no coverage applies, following your financial policy.

How to prevent problems

For work-injury patients, collect health insurance at the first visit even when workers’ comp is expected to pay. If the claim changes status, you can switch payers without delay. See coordination of benefits denials.

Codes that may appear with N624

  • CO-P4 (Workers' Compensation claim adjudicated as non-compensable.): The workers' compensation claim was adjudicated as non-compensable.
  • CO-P2 (Not a work related injury/illness and thus not the liability of the workers' compensation carrier): Not a work-related injury, so not the workers' compensation carrier's liability.
  • N585 (Benefits are no longer available based on a final injury settlement.): Benefits ended because of a final injury settlement.
  • N607 (Service provided for non-compensable condition(s).): The service was provided for non-compensable conditions.
  • N625 (Missing/Incomplete/Invalid Workers' Compensation Claim Number.): The workers' compensation claim number is missing, incomplete, or invalid.

N624 FAQ

Why would a workers' comp claim be withdrawn?

The worker may decide not to pursue it, the report may have been filed in error, or the injury may be handled another way. The reason usually doesn't change what you need to do.

Will the health plan pay for a work injury?

Health plans often exclude work-related injuries, but many will consider claims once they receive proof the workers' comp claim was withdrawn or denied. Ask the plan what it needs.

Can the claim be reopened?

Sometimes, under state rules. If it is reopened, the carrier may then process your bills.