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SSD SSI Definitions
SSDRC authored by Tim Moore
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Social Security Disability SSI and Traumatic Brain Injury (TBI)
Social Security makes disability decisions based upon an individualís residual functional capacity (what you are able to perform despite the limitations caused by your disabling condition) rather than specific medical conditions.
Social Security defines disability as any medically determinable mental or physical impairment that prevents a person from performing substantial gainful activity for twelve months, or is expected to prevent them from performing SGA level work activity (current SGA earnings limit) for twelve continuous months, or is expected to result in their death. Social Security disability examiners must have both medical evidence and work history information to make their disability decision.
This simply means that your traumatic brain injury must be supported by medical evidence (physical examinations, lab results, etc.) and you must have significant functional limitations as a result of your TBI that prevent you from performing any of your past work (work performed three months or longer in which your earnings were SGA), or any other type of work that your age, education, and skills might qualify you for.
Mental and physical impairment listings are contained in the Social Security disability evaluation guidebook known as the blue book. The blue book is sometimes referred to as the social security disability list of impairments; however, this is an erroneous description of the blue book since it does not contain most of the conditions for which a claimant might potentially be approved for disability benefits. In truth, it contains a small sampling of the wide array of psychological, psychiatric, and physical impairments that are known to exist which are potentially disabling.
While Social Security has a specific impairment listing, 11.18, in the neurological section of the blue book for traumatic brain injury (TBI), the listing merely refers you to evaluation criteria contained in other mental and neurological impairment listings. TBI is evaluated under the criteria contained in the convulsive and non-convulsive epilepsy listings, 11.02 and 11.03, , the listing for central nervous system vascular accident (CVA, or stroke), 11.04, and the organic brain disorders listing, 12.02.
Social Security uses the severity and functional evaluation criteria of other listings because TBI can result in mental and/or neurological impairments that exhibit a large variety of post-traumatic symptoms.
If an individualís TBI results in seizures, either convulsive or non-convulsive, or causing loss of consciousness, or impaired awareness or behavior, their TBI might be evaluated under 11.02 or 11.03 of the neurological impairment listings. Both listings state that the seizures must be documented by a detailed description of the seizure pattern and phenomena and they must occur at least once per month in spite of treatment.
To satisfy listing 11.02 (convulsive), the claimant's disorder must involve convulsive seizures and loss of consciousness or nocturnal episodes that significantly interfere with an individualís activity during the day.
In order to satisfy the severity requirement of 11.03 (non-convulsive), an individual must have the same medical documentation with alteration of awareness, unconventional behavior, significant interference of normal daily activities, loss of consciousness and transient postictal manifestations (altered state of awareness after an individual has experienced a seizure).
Even if your TBI injury does not involve seizures, your symptoms (loss of consciousness, awareness, etc.) may meet or equal the impairment criteria of the seizure listings. While some individuals with TBI exhibit neurological impairment, others experience impaired brain function that can cause loss of coordination, motor function, ambulation, speech, or communication. Individuals who have these posttraumatic symptoms may be evaluated under neurological listing 11.04, or mental impairment listing 12.02.
Listing 11.04 provides approval criteria for those who have had central nervous system vascular accidents (strokes). The listing criteria require that an individual have sensory or motor aphasia that results in ineffective speech or communication; or persistent significant disorganization of motor function in two extremities that causes constant disturbance of gross and dexterous movements, or gait and station.
If an individualís TBI results in psychological or behavioral abnormalities, their disability case might be evaluated under the criteria of listing 12.02 of the mental disorder listings.
While listing 12.02 addresses organic mental disorders, in order to meet the severity requirement of this impairment listing an individual must demonstrate a loss of specific affective changes or loss of cognitive abilities and have medical documentation of one of the following: disorientation to time and place; or memory impairment (short-term, intermediate, or long term); or perceptual or thinking disturbances (delusions, hallucinations); or personality change; or disturbance in mood; or emotional lability (sudden crying or explosive temper outbursts); or impulse control impairment; or loss of measured intellectual ability of 15 I.Q. points from premorbid (i.e. prior to the traumatic injury) levels, or overall impairment index clearly within the severely impaired rage on neuropsychological testing.
Any one of these criteria must result in at least two of the following:
If an individual cannot meet the organic brain syndrome listing criteria, they may still meet or equal this impairment listing if they have a medically documented medical history of TBI impairments of at least two years duration that have caused more than minimal limitation of their ability to perform basic work activities, with symptoms or signs eased by medication or psychosocial support along with one of the following:
If you meet or equal any of the above impairment criteria as a result of TBI, you may be able to receive disability benefits. For that matter, even if you are not able to meet or equal any of the above listing criteria because of your traumatic brain injury, you still may be approved for disability benefits through Social Security.
Social Security disability always looks at residual functional capacity rather than specific conditions. This means there is still a chance of being approved for disability benefits if your traumatic brain injury has caused limitations that prevent you from returning to any of your past work, or performing any other type of work that, in the absence of your disabling condition, you might be able to transition to.
If this is the case, you may still be approved for disability benefits through a medical vocational disability allowance. Medical vocational disability allowances are determined by an individualís age, education, work history, transferability of their work skills, and residual functional capacity (what a person can do in spite of the limitations imposed upon them by their disabling condition).
Return to: Social Security Disability Resource Center, or read answers to Questions
Related Body System Impairments:
Filing for Social Security Disability or SSI with Multiple Sclerosis MS
Why Is It Hard to be Found Disabled for Social Security Disability or SSI for Seizures?
Do You Automatically Get Approved For Disability If You Had A Stroke?
Facts about Mini Strokes and Filing for Disability
Multiple Sclerosis (MS), Social Security Disability, and Applying for Benefits
Seizure Disorder, Social Security Disability, and Applying for Benefits
Why is Charcot-marie-tooth not on the Social Security Disability list of impairments?
Charcot-marie-tooth disease and Filing for Disability
Social Security Disability SSI and Traumatic Brain Injury (TBI)
Dystonia and Filing for Disability
Dysautonomia and Filing for Disability
Grand Mal Seizures and Filing for Disability
Narcolepsy, Social Security Disability, and Applying for Benefits
Epilepsy and Filing for Disability
Hydrocephalus and Filing for Disability
Memory Loss and Filing for Disability
Facts about Stroke and Filing for Disability
Information on the following topics can be found here: Social Security Disability Questions and in these subsections:
Frequently asked questions about getting Denied for Disability Benefits | FAQ on Disability Claim Representation | Info about Social Security Disability Approvals and Being Approved | FAQ on Social Security Disability SSI decisions | The SSD SSI Decision Process and what gets taken into consideration | Disability hearings before Judges | Medical exams for disability claims | Applying for Disability in various states | Selecting and hiring Disability Lawyers | Applying for Disability in North Carolina | Recent articles and answers to questions about SSD and SSI
These pages answer some of the most basic questions for individuals who are considering filing a claim.
Filing for disability - How to file for SSD or SSI and the Information that is needed by Social Security
How to Apply for Disability - What medical conditions can you apply and qualify for?
Applying for Disability - How long does it take to get Social Security Disability or SSI benefits?
What happens if I file a disability application and it is denied by a disability examiner or Judge?
How to Prove you are disabled and qualify to win disability benefits
How do you prove your disability case if you have a mental condition or impairment?
Social Security Disability Back pay and How Long it Takes to Qualify for it and receive it
Social Security Disability SSI - Eligibility Requirements and Qualifications Criteria