How to Appeal a Long-Term Disability Denial

A denial letter from a long-term disability (LTD) insurer can feel like the end of the road. It isn't. Most LTD claims go through at least one appeal before they're resolved — and understanding how that process works is the first step toward navigating it effectively.

This article focuses on private long-term disability insurance appeals, which are governed by different rules than Social Security Disability Insurance (SSDI). Knowing which system you're dealing with matters enormously, because the process, deadlines, and decision-makers are completely different.

LTD Insurance vs. SSDI: Two Separate Systems

Many people confuse private LTD benefits with SSDI. They're not the same.

If your LTD coverage came through an employer, it's almost certainly governed by ERISA — the Employee Retirement Income Security Act. That changes the rules significantly compared to individual policies.

Why LTD Claims Get Denied

Insurers deny claims for many reasons, and the denial letter itself is your roadmap. Common reasons include:

• Insufficient medical evidence — the file didn't document your functional limitations clearly enough
• Definition of disability disputes — many policies cover "own occupation" disability for the first two years, then switch to "any occupation," a much harder standard to meet
• Independent Medical Examination (IME) results — the insurer's hired doctor may have reached different conclusions than your treating physician
• Surveillance or social media evidence — insurers do conduct investigations
• Pre-existing condition exclusions — policy language may exclude conditions that began before your coverage started
• Missed deadlines or incomplete paperwork

Read your denial letter carefully. It must state the specific reason for denial and explain your right to appeal.

The ERISA Internal Appeal Process

If your plan is covered by ERISA, you are generally entitled to at least one internal appeal before you can sue. This step is not optional — if you skip the internal appeal, you typically lose your right to sue in federal court.

Step 1: Request Your Claim File

Before drafting your appeal, request the complete administrative record from the insurer. ERISA requires them to provide it. This file includes every document they used to make their decision — medical reviews, policy language, internal notes, and any surveillance reports.

Step 2: Understand Your Deadline ⚠️

ERISA plans must give you at least 180 days to file an internal appeal after receiving a denial. Individual (non-ERISA) policies vary — some give as little as 60 days. Missing this deadline can permanently bar your appeal, so confirm the exact date in your denial letter.

Step 3: Build Your Appeal Record

This is the most consequential step. Under ERISA, federal courts generally only review the evidence that was in the administrative record. If you didn't submit a piece of evidence during the appeal, you usually cannot introduce it later in litigation.

Strong appeals typically include:

• Updated medical records documenting your condition and functional limitations
• Treating physician statements that address the specific reasons for denial
• Functional Capacity Evaluations (FCEs) from physical or occupational therapists
• Vocational expert opinions if the denial was based on your ability to perform other work
• Personal statements describing how your condition affects daily activities
• Responses to the IME — your doctor can review and rebut the insurer's medical report point by point

Step 4: Submit a Written Appeal

Your appeal should directly address each reason stated in the denial letter. Vague submissions rarely succeed. Reference specific policy language, cite the evidence you're submitting, and explain why the insurer's reasoning was flawed or incomplete.

Step 5: Wait for a Decision

ERISA requires insurers to decide most appeals within 45 days, with one possible 45-day extension. Some complex cases get additional time. You must receive written notice of the decision.

After an Internal Appeal: What Comes Next

If the insurer upholds the denial after your internal appeal, your options depend on your policy type:

• ERISA plans: You can file a lawsuit in federal district court. The court reviews the administrative record — which is why building that record during the appeal phase is so critical.
• Individual (non-ERISA) policies: You may file suit in state court, and the rules around evidence are generally more flexible.

Some ERISA plans give the insurer "discretionary authority" to interpret the plan and make eligibility decisions. When that language is present, courts apply a deferential standard of review — meaning the insurer's decision stands unless it was arbitrary or an abuse of discretion. Plans without that language are reviewed differently, which can affect litigation outcomes significantly.

How SSDI Interacts With LTD Claims 📋

Many LTD policies require you to apply for SSDI and may offset (reduce) your LTD benefit by the amount you receive from Social Security. An SSDI approval can also strengthen your LTD appeal by providing independent government documentation of your disability — though the two programs use different definitions and standards, so one outcome doesn't guarantee the other.

If you're pursuing both simultaneously, the timelines and evidence requirements run on separate tracks and need to be managed accordingly.

What Shapes the Outcome of an LTD Appeal

No two appeals are identical. The factors that determine what happens next include:

• The specific language in your policy, particularly the definition of disability
• Whether your plan is governed by ERISA or state law
• The strength and completeness of your medical documentation
• Whether you've met the policy's elimination period requirements
• The quality of your treating physician's records and willingness to provide detailed statements
• Whether the insurer used discretionary authority language
• The stage of appeal you're at — internal vs. litigation

Someone with a strong treating physician record, detailed functional documentation, and a clearly supported medical diagnosis will face different prospects than someone whose file is thin or whose condition is difficult to document objectively. The same denial reason can have very different outcomes depending on what evidence is available to address it.

Your denial letter, your policy, and your medical record are the three documents that define where you actually stand.