Long-Term Disability Insurance Appeal Guide: ERISA, Own Occupation, and Winning Your Case

Long-term disability (LTD) insurance replaces a substantial portion of your income when you are unable to work for an extended period. For most claimants, these benefits are the difference between financial stability and catastrophe. When an LTD claim is denied or terminated, the stakes could not be higher — and the appeal process is one of the most legally complex in all of insurance law. Understanding how LTD claims work, why they are denied, and how to build the strongest possible appeal can be the difference between winning and losing benefits you have paid for.

Why Insurers Deny Long-Term Disability Claims

LTD denials differ from health insurance denials in important ways. The insurer is evaluating not just what treatment you need, but whether your condition prevents you from working — and that assessment is inherently subjective and contested. Common denial reasons include:

• Failure to meet the definition of disability: Most LTD policies use an "own occupation" definition for the first 24 months (you cannot perform the material duties of your specific occupation) and then switch to an "any occupation" standard (you cannot perform any occupation for which you are reasonably qualified by education, training, or experience). Denials often occur at the 24-month mark when the definition changes.
• Insufficient medical evidence: The insurer's in-house physicians or independent medical examiners conclude that your medical records do not document functional limitations severe enough to prevent work. Conditions like fibromyalgia, chronic fatigue syndrome (ICD-10: G93.3), and mental health disorders are particularly vulnerable to this type of denial because their functional impact is not always visible on objective testing.
• Surveillance and social media evidence: LTD insurers actively conduct video surveillance and review social media accounts. A brief period of activity — loading groceries, attending a social event — can be mischaracterized as evidence you are not disabled.
• Pre-existing condition exclusions: Many LTD policies exclude disabilities caused by pre-existing conditions treated within 3 to 6 months before coverage began.
• Failure to cooperate with the insurer's requirements: Missing independent medical examinations (IMEs), failing to provide authorization for medical records, or not complying with vocational rehabilitation requirements can result in denial or termination.

How to Appeal a Long-Term Disability Denial

Step 1: Read Your Policy and Denial Letter With Extreme Care

ERISA governs most employer-sponsored LTD plans, and under 29 C.F.R. §2560.503-1, the insurer must provide specific reasons for the denial, reference the specific plan provisions relied upon, and describe any additional information needed to perfect the claim. Read every word of the denial letter against the exact language of your policy — particularly the disability definition, elimination period, and any exclusions. Inconsistencies between the denial rationale and the policy language are grounds for appeal.

Step 2: Request the Complete Claim File

Under ERISA, you have the right to request a complete copy of your claim file — every document the insurer reviewed in making its decision. Request this in writing immediately. The file will contain the insurer's internal notes, the opinions of any physician reviewers, any surveillance footage or social media reports, and the vocational assessment. Reviewing this material is essential to understanding and rebutting the insurer's reasoning.

Step 3: Address the Medical Evidence Gap

The most common reason LTD claims fail on appeal is insufficient functional capacity documentation. Work with your treating physicians to obtain: a detailed Attending Physician Statement (APS) describing your functional limitations in concrete terms (how long you can sit, stand, lift, concentrate); a Functional Capacity Evaluation (FCE) conducted by a licensed physical or occupational therapist; neuropsychological testing if cognitive impairment is a factor; and updated diagnostic testing (MRI, labs, specialist notes) that reflects your current condition. Each piece of evidence should speak directly to your ability — or inability — to perform work-related activities.

Step 4: Retain Your Own Vocational Expert if an "Any Occupation" Standard Applies

If the denial is based on a finding that you can perform "any occupation," challenge the vocational analysis. Hire an independent vocational rehabilitation expert to evaluate your specific transferable skills, education, and the realistic job market for someone with your functional limitations. The insurer's vocational reviewer may have identified occupations that do not account for the sitting tolerance, cognitive demands, or pain management requirements that your medical records establish.

Step 5: Submit the ERISA Internal Appeal Within the Deadline — This Is Critical

Under ERISA, you generally have 180 days from receipt of the denial to file an internal appeal. Missing this deadline can be catastrophic — it may permanently waive your right to judicial review. The ERISA appeal record is closed: in most cases, courts reviewing an ERISA denial are limited to the administrative record developed during the appeal process. Every piece of evidence you want a court to consider must be submitted during the internal appeal. Do not hold evidence back.

Step 6: Consider External Independent Review: Complete Guide" class="auto-link">External Review and Litigation

After an adverse determination on internal appeal, ERISA-governed plans may offer voluntary external review (some states require it for fully insured plans). If external review is not available or does not resolve the matter, federal court review under ERISA §502(a) is the next step. Courts review LTD denials under either a de novo or abuse of discretion standard, depending on whether the plan grants discretionary authority to the plan administrator. Consulting an ERISA attorney before or during the appeal process is strongly recommended for LTD cases given the litigation stakes.

What to Include in Your LTD Appeal

• Complete Attending Physician Statements from all treating specialists, with specific functional limitations documented in measurable terms (hours of sitting, lifting capacity, concentration duration)
• Functional Capacity Evaluation (FCE) from a licensed physical or occupational therapist
• Rebuttal to any insurer IME or physician reviewer opinion, with your physician's point-by-point response
• Vocational expert report if the denial applies an "any occupation" standard
• All relevant medical records, diagnostic imaging, lab results, and specialist notes updated to the date of appeal submission

Fight Back With ClaimBack

Long-term disability denials are among the most financially devastating claim outcomes — and ERISA's closed administrative record means that what you submit on appeal is often what a court will see. ClaimBack helps you build a comprehensive, evidence-based appeal letter that addresses the insurer's specific denial reasoning and references applicable ERISA standards in 3 minutes. Start your free claim analysis → Free analysis · No credit card required · Takes 3 minutes

Related Reading

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