Insurance Denial Reasons & Strategies

Understand why your claim was denied and find the proven legal strategy to overturn it. Select your denial reason to view specific appeal guides.

Not Medically Necessary
62% Success Rate

The insurer determined that the treatment, service, or procedure is not medically necessary for your condition. This is the most common denial reason and is often overturned on appeal.

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Pre-Authorization / Prior Authorization Required
58% Success Rate

The insurer denied the claim because prior authorization was not obtained before the service was rendered. However, many situations have exceptions to pre-auth requirements.

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Out-of-Network Provider
55% Success Rate

The claim was denied because the provider was out of the insurer's network. Federal and state surprise billing protections may apply.

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Experimental or Investigational
45% Success Rate

The insurer classified the treatment as experimental or investigational and therefore not covered. Treatments with FDA approval or inclusion in clinical guidelines are generally not experimental.

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Coding or Billing Error
72% Success Rate

The claim was denied due to incorrect CPT, ICD-10, or other billing codes. This is a provider-side issue that should not be the patient's financial responsibility.

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Service Not Covered Under Plan
40% Success Rate

The insurer states the service is excluded from your plan benefits. However, essential health benefits under the ACA and state mandated benefits may override plan exclusions.

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Timely Filing Deadline Exceeded
35% Success Rate

The insurer denied the claim because it was submitted after the filing deadline. If you can prove timely submission, this denial can be overturned.

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Duplicate Claim
68% Success Rate

The insurer flagged the claim as a duplicate of a previously processed claim. Separate services on the same date are NOT duplicates.

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Policy Lapse / Not in Effect
55% Success Rate

The insurer claims your auto policy was not active at the time of the incident. Premium payments may have been missed or the policy was cancelled.

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Excluded Driver
48% Success Rate

The driver involved in the accident was not listed on your policy or was specifically excluded from coverage.

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Coverage Exclusion / Not Covered
35% Success Rate

The type of damage or incident is excluded from your policy coverage (e.g., intentional damage, racing, off-road use).

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Failure to Report Timely
42% Success Rate

The claim was not reported to the insurer within the required time frame (usually 24-48 hours for accidents).

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Disputed Liability / At-Fault
50% Success Rate

The insurer disputes who was at fault for the accident, claiming you or your driver caused the incident.

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