Qualifying for Disability Benefits with Trisomy X Syndrome (XXX Syndrome)
Triple X syndrome is a genetic disorder that affects about 1 in 1,000 females. Females normally have two X chromosomes in all cells — one X chromosome from each parent. In triple X syndrome, a female has three X chromosomes. Many girls and women with triple X syndrome don’t experience symptoms or have only mild symptoms. In others, symptoms may be more apparent — possibly including developmental delays and learning disabilities. Seizures and kidney problems occur in a small number of girls and women with triple X syndrome. Treatment for triple X syndrome depends on which symptoms, if any, are present and their severity. To learn more about how the Social Security Administration (SSA) defines this disability, visit Section 10.00 of the Blue Book.
Does Trisomy X Syndrome (XXX Syndrome) Qualify for Disability?
Unfortunately, there is no specific listing for Trisomy X Syndrome in the Social Security Administration’s guide to disabling conditions (the “Blue Book”), so proving total disability and obtaining disability benefits because of a diagnosis of Trisomy X Syndrome can be difficult.
Trisomy X Syndrome is mentioned in Section 10.00 Multiple Body Systems – Adult and in Section 110.00 Multiple Body – Childhood, the same sections that address mosaic Down Syndrome. The Social Security Administration (SSA) comments under Paragraph C.2. of those sections that Trisomy X Syndrome is one of the “other impairments that can cause deviation from, or interruption of, the normal function of the body or interfere with development…”
The SSA bases its approval for disability benefits not on the severity of your condition, but on the severity of the limitations your condition imposes on you (i.e., “residual functional capacity”). If the symptoms of Trisomy X Syndrome keep you from obtaining and keeping gainful employment, then you may be eligible for disability benefits. However, you must have medical documentation that 1) provides a chromosomal analysis and diagnosis of your condition and 2) describes in detail the symptoms of your condition that are severe enough to prevent you from working. For example, if as a result of Trisomy X Syndrome you have severe learning disabilities that keep you from finding and keeping gainful employment, then your medical records should be able to detail the diagnosis of your learning disability, its severity, and how it limits your day-to-day functioning.
How Do I Apply for Disability Benefits?
To apply for disability benefits, it’s important to understand the disability application process. If you’ve been diagnosed with Trisomy X syndrome (XXX syndrome) and believe you may qualify, contact us today for a free disability case evaluation.

