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N856 Remark Code: Coverage Not Governed by ERISA

N856 means the patient's coverage is not subject to the exclusive jurisdiction of ERISA, the federal Employee Retirement Income Security Act of 1974. State insurance law or other rules may therefore govern the plan, including appeal and external review rights.

Quick facts

Code
N856 (RARC N856)
Status
Active In use since July 1, 2021.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): Any CO amount on the claim is explained by its CARC; N856 describes which legal framework applies.
  • PR (Patient Responsibility): Patient responsibility is set by the plan's terms and applicable state or other law.
Official description
This coverage is not subject to the exclusive jurisdiction of ERISA (1974), U.S.C. SEC 1001.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N856 means

N856 is the counterpart of N855. Where N855 says federal ERISA law exclusively governs the coverage, N856 says it doesn’t. That opens the door to other rules, most often state insurance law, for issues like appeals, external review, prompt payment, and balance billing.

The remark is informational. It doesn’t change the amount paid, but it tells you which rulebook to consult if you need to challenge the outcome.

Why it matters

  • State rules may apply. State prompt pay laws, external review programs, and balance billing protections may govern the claim, depending on the plan and state.
  • Regulators differ. Complaints about plans outside ERISA’s exclusive jurisdiction typically go to the state insurance department or the agency overseeing the plan.
  • Federal law can still apply. Protections such as the No Surprises Act reach many non-ERISA plans too.

What to do

  1. Read the CARCs to understand the adjudication itself.
  2. Identify the plan type and regulating state, often from the member card or plan documents.
  3. If you appeal, follow the plan’s internal process first, then consider state external review or regulator complaints where available.
  4. Check state rules before relying on them in correspondence.

For legal questions about which law controls, consult counsel. The remark is a starting point, not a legal conclusion.

Codes that may appear with N856

  • CO-96 (Non-covered charge(s).): A non-covered charge under the plan's terms.
  • PR-204 (This service/equipment/drug is not covered under the patient's current benefit plan): The service isn't covered under the patient's current benefit plan.
  • N855 (This coverage is subject to the exclusive jurisdiction of ERISA (1974), U.S.C.): The opposite notice: the coverage is subject to ERISA's exclusive jurisdiction.
  • N858 (Alert: State regulations relating to an Out of Network Medical Emergency Care Act were applied to the processing of this claim.): A state out-of-network emergency care law was applied, a common example of state law in action.

N856 FAQ

What kinds of coverage aren't under ERISA?

Common examples include individual market plans, government employer plans, and church plans. Fully insured employer plans are ERISA plans but remain subject to many state insurance laws.

Does N856 mean state law definitely applies?

Not in every respect. It means ERISA doesn't exclusively govern the coverage. Which state or federal rules apply depends on the plan type and where it's regulated.

How does this help with a dispute?

It tells you state insurance regulators, state prompt pay rules, and state external review processes may be available. Check the specific state's rules.