What Is a Grievance? Grievance vs. Appeal in Health Insurance

Two of the most important words in the insurance complaint vocabulary are grievance and appeal — and they are frequently confused. Using the right one for the right situation is critical, because the wrong filing can delay your resolution or waive important rights.

What Is a Grievance?

A grievance is a complaint about the way your insurer treated you, a provider, or handled a non-claim matter. Grievances address problems that are not about a specific claim denial.

Examples of issues handled through the grievance process:

• Rude or unprofessional treatment by insurer staff
• Difficulty getting timely access to care (long wait times, network access problems)
• Billing errors or incorrect cost-sharing applied to a claim
• Failure to provide required notices (Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization decisions, denial letters)
• Privacy violations
• Delays in getting authorizations that don't involve a claim denial
• Problems with customer service or member portal

Under ACA rules, insurers must:

• Accept and respond to grievances
• Provide a response within 30 days (or faster for urgent situations)
• Maintain a grievance process that is distinct from the appeal process

What Is an Appeal?

An appeal is a formal challenge to a specific adverse benefit determination — meaning a denial, reduction, or termination of coverage or benefits. Appeals are used when:

• A claim is denied (not covered, not medically necessary, out-of-network, missing authorization, etc.)
• A prior authorization request is denied
• Your coverage is terminated or rescinded
• A service is approved but at a lower level than requested (e.g., inpatient denied in favor of outpatient)

Appeals follow a specific legal process under the ACA and ERISA:

• Internal appeal: First, you challenge the denial directly with your insurer.
• External Independent Review: Complete Guide" class="auto-link">External review: If the internal appeal fails, an independent organization reviews the decision.

Key Differences

Can You File Both?

Yes. In some situations, both a grievance and an appeal are appropriate:

• If your insurer delayed your prior authorization beyond legal timeframes, you might file a grievance about the delay AND appeal the eventual denial.
• If your claim was denied AND the denial letter was improperly formatted or missing required information, you might appeal the denial and file a grievance about the procedural defect.

Medicare-Specific Terminology

In Medicare Advantage and Part D:

• Grievance: Complaint about plan quality, service, or access
• Coverage determination (Part D): Initial decision about whether to cover a drug
• Redetermination: First level of appeal
• Reconsideration: Second level (by Qualified Independent Contractor)
• ALJ hearing, Medicare Appeals Council, federal court: Higher levels

State Insurance Commissioner Complaints

A state insurance commissioner complaint is different from both a grievance (plan-level) and an appeal (benefit-level). It is a regulatory complaint that triggers an investigation by the state regulator. It can be filed in parallel with either a grievance or an appeal and is especially useful when an insurer is repeatedly violating regulatory requirements.

Fight Back With ClaimBack

ClaimBack helps you determine whether your situation calls for a grievance, an appeal, or both — and generates the right documentation for each.

Start your appeal at ClaimBack

Related Reading

• Internal vs. External Insurance Appeal: What's the Difference?
• Common Reasons Insurance Claims Are Denied
• What Is an Insurance Ombudsman?