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N611 Remark Code: Claim in Litigation

N611 means the claim is in litigation, and the payer is directing you to contact the insurer for more information. Payment is typically held or reduced while the legal dispute over the underlying claim is unresolved.

Quick facts

Code
N611 (RARC N611)
Status
Active In use since July 15, 2013.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • OA (Other Adjustment): The amount is on hold pending litigation. It is not yet a final write-off or patient balance.
  • CO (Contractual Obligation): Some carriers report litigation holds under CO. Treat the balance as pending unless told otherwise.
Official description
Claim in litigation. Contact insurer for more information.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N611 means

When an injury claim ends up in a legal dispute, the insurer may stop paying medical bills until the case is decided. N611 tells you that is the situation and asks you to contact the insurer for details. It is a property and casualty remark and commonly appears with CARC P10 or P11.

What to do

  1. Call the adjuster to learn what is in dispute, the case status, and who represents the patient.
  2. Ask about a lien or notice. Some providers file a notice of their outstanding charges with the patient’s attorney or, where allowed, a lien, so the bills are considered in any settlement. Rules vary by state.
  3. Keep submitting bills on time if the carrier requires it, so a favorable outcome isn’t lost to a missed deadline.
  4. Check the rules on patient billing before sending any statements.
  5. Follow up at regular intervals until the case resolves.

After litigation ends

  • If the claim is accepted, ask the carrier to process held bills.
  • If there is a settlement, confirm whether it includes your charges.
  • If the claim is denied, bill the patient’s health insurance, watching its filing limits. See timely filing denials.

How to stay organized

Flag litigated accounts in your system with the attorney’s contact and case number, and review them monthly. These balances can remain open for long periods.

Codes that may appear with N611

  • CO-P10 (Payment reduced to zero due to litigation.): Payment reduced to zero due to litigation, with more information to follow after it concludes.
  • OA-P11 (The disposition of the related Property & Casualty claim (injury or illness) is pending due to litigation.): The disposition of the related P&C claim is pending due to litigation.
  • N581 (Investigation of coverage eligibility is pending.): Coverage eligibility investigation is pending.
  • N664 (Adjusted based on a legal settlement.): Adjusted based on a legal settlement.
  • N585 (Benefits are no longer available based on a final injury settlement.): Benefits ended because of a final injury settlement.

N611 FAQ

Who is in litigation?

Usually the injured person and the insurer or employer, disputing liability, coverage, or benefits. The provider is often not a party.

Should I bill the patient during litigation?

Rules vary by state and type of claim. Some jurisdictions restrict billing injured workers or no-fault claimants while a claim is pending. Check before sending statements.

Will I be paid when it's over?

It depends on the outcome. If the claim is accepted or settled with medical benefits, pending bills may be paid; if not, you may need to bill other coverage.