erisa-claim-denied-how-to-appeal-your-employer-health-plan">ERISA Claim Denied: How to Appeal Your Employer Health Plan

The Employee Retirement Income Security Act of 1974 (ERISA) governs most employer-sponsored health plans in the United States. If you receive health insurance through your employer — or through a former employer's plan — ERISA almost certainly applies to your coverage. When your plan denies a claim, ERISA provides specific procedural rights that are critical to protect. Failing to follow ERISA's appeal process can eliminate your right to sue later.

What Is ERISA and Which Plans Does It Cover?

ERISA is a federal law administered by the U.S. Department of Labor (DOL) that sets minimum standards for most private employer benefit plans, including health insurance. ERISA covers:

• Health plans offered by private sector employers
• Plans of any size — from small businesses to large corporations
• Both fully insured plans (where the employer purchases group insurance from an insurer) and self-funded plans (where the employer pays claims directly)

ERISA does not cover:

• Government employer plans (federal, state, local)
• Church plans (unless the plan elects ERISA coverage)
• Individual health insurance purchased on the marketplace

Your Fundamental ERISA Rights

Right to a plan description: Your employer must provide a Summary Plan Description (SPD) explaining your benefits, coverage rules, and appeal procedures.

Right to a written denial: If your claim is denied in whole or in part, the plan must provide a written notice explaining the specific reason(s) for denial, the plan provisions relied upon, your right to appeal, and a description of the appeal process.

Right to your claim file: You can request all documents relevant to your claim — medical records reviewed, clinical criteria used, internal communications — at no charge.

Right to appeal: ERISA mandates an internal appeal process before you can sue.

Right to file suit: After exhausting internal remedies, you can sue in federal court under ERISA § 502(a).

ERISA Claim Denial Types

Initial claim denial: Your claim for a health service is denied after the service is rendered.

Prior Authorization Denied: How to Appeal" class="auto-link">Prior authorization denial: The plan refuses to pre-approve a service before it is provided.

Adverse benefit determination: Any full or partial denial, limitation, or termination of a benefit — including rescission of coverage.

Urgent care claim denial: A denial of care needed urgently.

ERISA Appeal Deadlines (Critical)

ERISA sets mandatory minimum deadlines — plans can give you more time but not less:

To file an internal appeal:

• Pre-service claims (prior authorization): 180 days from denial
• Post-service claims (claims submitted after service): 180 days from denial
• Urgent care claims: At least 72 hours (plans must handle urgently)

Plan's response deadline for internal appeals:

• Pre-service, non-urgent: 15 days (extendable by 15 days with notice)
• Post-service: 60 days (extendable by 60 days with notice)
• Urgent care: 72 hours

These deadlines are minimums — your SPD may provide longer timeframes.

The ERISA Internal Appeal Process

Step 1: Request Your Claim File

Before drafting your appeal, request all documents the plan used to make its decision. Under ERISA regulations (29 CFR § 2560.503-1(h)), the plan must provide these free of charge. Review them carefully — plans sometimes deny claims based on misapplied criteria or incomplete review of your medical records.

Step 2: Write Your Appeal Letter

Address each denial reason specifically. Include:

• A statement of the specific benefit you are claiming
• The denial reason (as stated by the plan) and why it is incorrect
• Your physician's letter of medical necessity
• Medical records supporting the necessity of the care
• The plan provision you believe requires coverage
• Clinical guidelines or peer-reviewed literature supporting the treatment
• References to ERISA regulations if the plan violated procedural rules

Step 3: Submit Within the Deadline

Submit the appeal in writing via certified mail to the claims administrator's address listed in your SPD. Keep all copies and delivery confirmation.

Step 4: Receive the Plan's Decision

The plan must issue a written determination. If the appeal is denied, the notice must explain the denial reason, the clinical criteria applied, and your right to External Independent Review: Complete Guide" class="auto-link">external review or to bring a civil action under ERISA § 502(a).

Step 5: Request External Review

Under the ACA, ERISA-governed plans must provide access to an external independent review by an Accredited IROs) Explained" class="auto-link">Independent Review Organization (IRO) for adverse medical necessity and experimental treatment determinations. External review is binding on the plan. Request it within the deadline specified in your denial notice (typically 4 months from the final internal denial).

After Exhausting Internal Remedies: ERISA Litigation

Once you have exhausted the plan's internal appeal process (and external review if applicable), you have the right to file suit under ERISA § 502(a) in federal district court. Important cautions:

• Document everything: The court's review is typically limited to the administrative record — the documents submitted during the internal appeal. If you did not submit evidence during the appeal, the court generally cannot consider it.
• Statute of limitations: ERISA has no federal statute of limitations for benefit claims; courts apply state contract law limitations, which vary. Your SPD may have a contractual limitations period.
• Standard of review: Courts review plan decisions under a deferential "abuse of discretion" standard if the plan grants the administrator discretionary authority. Documenting procedural violations during the appeal can shift this standard.

Fight Back With ClaimBack

ERISA claim appeals require careful attention to deadlines and documentation. ClaimBack helps you build a comprehensive appeal that preserves your rights, addresses the plan's reasoning with evidence and legal arguments, and sets you up for success at every level.

Start your appeal with ClaimBack

Related Reading

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity in Insurance?
• Internal vs. External Insurance Appeals Explained