erisa-rights">Small Business Group Health Insurance Claim Denied: ERISA Rights

Small businesses that offer group health insurance to their employees are providing a valuable benefit — but when an employee's claim is denied, the employer's role in the appeal process is often misunderstood. Whether your business buys insurance through a small group carrier or has moved to a self-funded arrangement, ERISA shapes both the employee's rights and the employer's obligations.

How Small Business Group Health Plans Work

Most small businesses (generally under 50 employees) purchase fully insured group health coverage through an insurance carrier. In this arrangement, the insurance company bears the financial risk and makes coverage decisions. The employer sponsors the plan and is considered the plan administrator under ERISA.

Some small businesses, particularly those with 25–100 employees, have moved to level-funded plans — a hybrid arrangement that includes self-funded risk with stop-loss insurance. These plans are legally self-funded and are governed exclusively by ERISA, not state insurance law.

What ERISA Requires When a Claim Is Denied

Under ERISA, when a plan denies a claim, the employee (called a "participant") must receive:

1. Written notice of the denial within 90 days of receiving the claim (30 days for disability claims), including:

   • The specific reasons for denial
   • Reference to the plan provision on which the denial is based
   • A description of any additional information needed
   • An explanation of the appeal process

2. A meaningful appeal right: ERISA requires that participants have a full and fair review of any adverse benefit determination. This means the appeal must be reviewed by someone different from the original decision-maker, and the reviewer must consider all comments, documents, records, and other information submitted.

3. A final determination on the appeal within 60 days (extended to 120 days in certain circumstances), or within 72 hours for urgent care situations.

If the plan fails to meet these requirements — including timelines — the participant may be deemed to have exhausted internal remedies and may proceed directly to federal court.

The Employer's Role in the Appeal

When an employee's health claim is denied, small business owners often feel it isn't their problem. That's a mistake, both ethically and legally. As plan administrator, the employer is a fiduciary under ERISA — meaning it has legal obligations to ensure the plan is administered in participants' best interests.

Practically, employers can help employees navigate denials by:

• Providing copies of the plan document and Summary Plan Description (SPD) upon request
• Helping employees understand what information is needed for an appeal
• Contacting the insurance carrier or TPA to request expedited review for urgent cases
• Facilitating peer-to-peer review between the employee's physician and the insurer's medical reviewer

Employers who ignore employee claim denials — particularly when those denials may violate ERISA's fiduciary standards — can face personal liability.

Common Denial Reasons in Small Group Plans

Small group health plans generate specific types of denials:

Medical necessity denials are the most common category. Small group carriers apply utilization management standards similar to large-group plans, often outsourced to third-party utilization management firms.

Network adequacy issues are particularly acute in small group plans, which often have narrow networks to keep premiums low. Employees in rural areas or small towns may find that specialists are out-of-network, generating denials when they seek specialized care.

Formulary and step therapy denials are common for employees managing chronic conditions. Small group formularies are often less comprehensive than large-employer formularies.

Coordination of benefits disputes arise when employees are covered by multiple plans (e.g., through a spouse's employer). Determining which plan pays first can be contested.

Filing an ERISA Appeal: What Employees Should Do

1. Request the plan documents: The Summary Plan Description, plan documents, and the criteria used in the denial are all available upon request from the plan administrator.

2. Submit a written appeal within the appeal deadline (typically 180 days for internal appeal). The appeal should include:

   • A written statement explaining why the denial is incorrect
   • Copies of supporting medical records
   • A letter from the treating physician
   • Citations to medical evidence supporting the treatment

3. Exhaust internal remedies: ERISA generally requires that participants exhaust all available internal appeal levels before filing a lawsuit. Don't skip steps.

4. Consult an ERISA attorney for high-value denials: If the internal appeal fails and the denied benefit is significant, an ERISA attorney can evaluate whether a federal lawsuit is warranted. ERISA authorizes recovery of the denied benefit, along with attorney's fees in some cases.

Fight Back With ClaimBack

ClaimBack helps employees and small business owners navigate group health claim denials — building the ERISA-compliant appeal documentation needed to fight back. Start at https://claimback.app/appeal.

Related Reading

• Internal vs. External Insurance Appeals
• Common Reasons Insurance Claims Are Denied
• How to Write an Insurance Appeal Letter