Categories of Disability Under IDEA (Updated 2017) (English and Spanish) (Center for Parent Information & Resources, CPIR)
The nation’s special education law is called the Individuals with Disabilities Education Act, or IDEA. As part of making special education and related services available to children with disabilities in the public schools, IDEA defines the term “child with a disability.” That definition includes specific disability terms, which are also defined by IDEA, as this webpage describes.
The IDEA’s disability terms and definitions guide how States in their own turn define disability and who is eligible for a free appropriate public education under special education law. The definitions of these specific disability terms from the IDEA regulations are shown beneath each term listed below. Note, in order to fully meet the definition (and eligibility for special education and related services) as a “child with a disability,” a child’s educational performance must be adversely affected due to the disability.