Insurance companies sometimes deny short term disability claims because they believe that the insured has not submitted enough documentation of their disability. Paperwork such as doctor’s notes, medical records, and treatment plans can provide support for your disability claim. An insurer may also deny your claim if they believe that your injury or illness occurred on the job or was the result of a pre-existing condition. Or your claim may be denied if you miss a filing deadline. Just because the insurance company denied your claim does not mean that you are not eligible for benefits. Your insurer may be in error or may just need more documentation of your condition. Speak to a short term disability lawyer as soon as possible if your claim has been denied.