Although known among select educators, the terms "dyslexia, dysgraphia and discalculia" are not often found on Individual Education Plans or used in meetings with parents or among teachers. For some, it is a lack of understanding as to what dyslexia is and how it differs from a "learning disability." For others, the issue is a lack of the specific language in laws such as the Individuals with Disability Education Act (IDEA). However, the Department of Education has issued a letter to all teachers allowing the use of these terms when referring students with these learning differences and on the Individual Education Plan (IEP). In effect they are encouraging the use of the terms dyslexia when it reflects and accurate diagnosis.
The following is the actual letter (which you can click on to enlarge)