Long-Term Disability Denied? Complete LTD Appeal Guide

A long-term disability denial can feel like having the ground taken from under your feet. You're unable to work, you've been paying premiums for years, and now the insurer says your disability doesn't qualify.

The good news: LTD denials are among the most successfully challenged insurance decisions. Here's your complete appeal guide.

Why Long-Term Disability Claims Are Denied

LTD insurers (Unum, MetLife, Sun Life, Manulife, Lincoln National, Hartford, Prudential, Principal) deny claims for specific reasons:

1. "Doesn't meet the definition of disability" Most LTD policies define disability as the inability to perform:

• Your "own occupation" (first 24 months typically)
• "Any occupation" for which you are qualified by education, training, or experience (after 24 months)

Insurers frequently dispute whether your condition prevents you from performing your specific occupational duties.

2. "Insufficient objective medical evidence" LTD insurers demand "objective" evidence — imaging, lab results, clinical measurements. Conditions based primarily on reported symptoms (fibromyalgia, chronic fatigue syndrome, PTSD, depression, anxiety) face particularly high Denial Rates by Insurer (2026)" class="auto-link">denial rates because they lack "objective" markers.

3. "Pre-existing condition exclusion" Most LTD policies exclude disabilities caused by conditions that were treated or diagnosed within 3–12 months before your coverage began. If your disability is related to a pre-existing condition, the insurer may deny.

4. "Surveillance evidence" Insurers hire investigators to surveil claimants. If the surveillance shows you performing activities inconsistent with your claimed limitations, they use this as grounds for denial. These activities are often taken out of context.

5. "Change in definition at 24 months" When the definition shifts from "own occupation" to "any occupation," many claimants who were previously approved are then denied because there exist sedentary jobs they theoretically could perform.

6. "Mental health/nervous condition limitation" Many LTD policies limit mental health and substance abuse disability benefits to 24 months. After 2 years, mental health disability benefits end — even if the condition is genuinely disabling.

erisa-us">Your Rights Under ERISA (US)

Most US employer-sponsored LTD plans are governed by ERISA (Employee Retirement Income Security Act). ERISA sets strict procedural requirements for LTD denials:

• Written denial with specific plan provision and clinical criteria cited
• Complete claim file available to you on request
• Right to a full and fair review (internal appeal)
• Decision within 45 days of internal appeal (with one 45-day extension)
• Right to External Independent Review: Complete Guide" class="auto-link">external review (for non-grandfathered plans under ACA)
• Right to sue in federal court after exhausting internal appeals

Critical ERISA Warning: You must exhaust ERISA's internal appeal process before suing. Everything you want a court to consider must be in the administrative record — submitted during the appeal process. This means your appeal must be comprehensive and include all supportive evidence.

Building Your LTD Appeal: The Evidence You Need

Medical Evidence (Most Important)

Attending physician's report: Your treating physician must complete a detailed functional capacity assessment — not just a brief statement. The form should document:

• Specific diagnosis and basis for the diagnosis
• How your condition limits specific physical and cognitive activities
• Hours per day you can perform sedentary, light, medium, heavy work
• Frequency of your flare-ups or bad days
• Restrictions and limitations (e.g., cannot sit for more than 20 minutes, cannot concentrate for more than 30 minutes, must rest 4+ hours per day)

Specialist consultations: Get letters from all relevant specialists — psychiatrist, rheumatologist, neurologist, cardiologist — whoever treats your conditions. Each specialist should document your functional limitations from their specialty perspective.

Objective test results: Even for "subjective" conditions, seek objective corroboration:

• For pain conditions: MRI showing structural causes, nerve conduction studies, EMG
• For mental health: Neuropsychological testing showing cognitive impairment, psychiatric medication history
• For fatigue conditions: Sleep studies, metabolic testing, cardiometabolic testing
• For cardiac conditions: Echocardiogram, stress test results, Holter monitoring

Functional Capacity Evaluation (FCE): A formal FCE by an occupational therapist objectively measures your physical work capacity. This is expensive but powerful — and a legitimate insurer cannot simply dismiss an FCE finding without addressing it specifically.

Vocational Evidence (For "Any Occupation" Denials)

When your LTD is denied at the 24-month "any occupation" point, hire a vocational expert to assess whether you truly could perform any occupation that exists in significant numbers. Vocational experts counter insurer claims that you could do a sedentary desk job. Your vocational expert should consider:

• Your specific transferable skills
• Your educational background
• Your treatment demands (frequent appointments, medication side effects)
• Current labor market conditions for the occupations the insurer claims you could do
• Your age, experience, and realistic employability

Addressing Surveillance Evidence

If the insurer used surveillance to deny your claim, address it directly:

• Explain the context of the activities shown (the surveillance shows you carrying groceries for 30 seconds — it doesn't show you spending 3 hours in bed afterward)
• Document your "good days" vs. "bad days" — disability doesn't mean complete inability all day, every day
• Get your doctor to explain that fluctuating capacity is a hallmark of your condition

Writing Your LTD Appeal Letter

Your appeal letter should:

1. State clearly that this is a formal ERISA appeal
2. Identify each specific denial reason and address it point by point
3. Reference the specific plan language being interpreted incorrectly
4. Attach all supporting medical and vocational evidence
5. Request the full claim file and the credentials of all reviewers who denied your claim
6. Preserve your rights by stating that you intend to exhaust administrative remedies before seeking judicial review

Fight Back With ClaimBack

ClaimBack generates LTD appeal letters citing ERISA procedural requirements, your specific insurer's claims criteria, and the medical and vocational evidence standards needed for successful LTD appeals.

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Related Reading

• What Is Medical Necessity and How to Prove It
• How to Write an Insurance Appeal Letter That Works
• Internal vs External Insurance Appeal: Which Should You Choose?