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N149 Remark Code: Rebill All Services on One Claim

N149 means the payer wants all applicable services rebilled together on a single claim. The services were split across claims, and the payer cannot process them correctly unless they arrive as one submission.

Quick facts

Code
N149 (RARC N149)
Status
Active In use since October 31, 2002.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): A billing-format denial; the provider resolves it by combining the services, not by billing the patient.
Official description
Rebill all applicable services on a single claim.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N149 means

Payers price many services in relation to one another. A primary procedure affects an add-on; multiple procedures on one day trigger multiple-procedure pricing; facility charges for one stay are priced together. N149 tells you the services you split across separate claims need to come back on one claim so those rules can be applied.

It usually appears with CARC 16 or a general denial.

Common causes

  • Late charges were billed on a separate claim instead of being added to the original.
  • A practice management system split a long encounter into several claims because of line limits or batching rules.
  • Different staff billed different services from the same encounter.
  • A facility billed interim claims when the payer wanted one claim for the stay.

How to fix it

  1. Identify every related claim for the patient, provider, and date or stay.
  2. Check how each was processed. Paid claims may need to be voided or replaced as part of consolidation.
  3. Build one claim with all applicable service lines, keeping dates, modifiers, and diagnosis pointers correct.
  4. Submit the combined claim using the payer’s instructions for new versus replacement claims.
  5. Reconcile payments after it processes so you do not carry credits from the earlier claims.

How to prevent it

Hold claims until all charges for the encounter are entered, and handle late charges as replacement claims under payer rules. If your system splits claims automatically, check its settings against the payer’s requirements. The duplicate claims guide covers how split and resubmitted claims create further denials.

Codes that may appear with N149

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): The claim has a submission or billing error; N149 explains that services must be combined.
  • CO-107 (The related or qualifying claim/service was not identified on this claim.): A related or qualifying service was not on this claim.
  • CO-A1 (Claim/Service denied.): A general denial, with N149 describing how to resubmit.
  • N93 (A separate claim must be submitted for each place of service.): The opposite instruction: use a separate claim for each place of service.
  • N122 (Add-on code cannot be billed by itself.): An add-on code billed without its primary procedure, often the result of splitting claims.
  • N142 (The original claim was denied.): Submit a new claim rather than a replacement when the original was denied.

N149 FAQ

Which services count as 'applicable'?

Those that the payer needs to evaluate together, such as all services on one date by the same provider, all charges for one stay, or a primary service and its related lines. The remittance or payer policy should indicate the scope.

Should I void the earlier claims first?

If any of them paid, the payer may want them voided or replaced so the combined claim does not duplicate payment. Ask the payer how it wants the claims reconciled.

Why does splitting cause problems?

Bundling, pricing, and frequency edits compare lines within a claim. When related services are on separate claims, those edits can't work correctly.