500
As defined by the University of Toronto Institute for Studies in Education ( Alex Trebek would love this Canadian reference), this is a combination of learning or other disorders, impairments, or physical disabilities that are of such a nature as to require, for an educational achievement, the services of one or more teachers holding qualifications in special education and the provision of support services appropriate for such disorders, impairments, or disabilities
What is meant by multiple exceptionalities in education?