According to the Ontario Human Rights Code, a “Disability” is defined as:
(a) any degree of physical disability, infirmity, malformation or disfigurement that is caused by bodily injury, birth defect or illness and, without limiting the generality of the foregoing, includes diabetes mellitus, epilepsy, a brain injury, any degree of paralysis, amputation, lack of physical co-ordination, blindness or visual impediment, deafness or hearing impediment, muteness or speech impediment, or physical reliance on a guide dog or other animal or on a wheelchair or other remedial appliance or device.
(b) A condition of mental impairment or a developmental disability.
(c) A learning disability or a dysfunction in one or more of the processes involved in understanding or using symbols or spoken language.
(d) A mental disorder, or
(e) An injury or disability for which benefits were claimed or received under the insurance plan established under the Workplace Safety and Insurance Act, 1997.
The definition includes disabilities of different severity, visible as well as non-visible disabilities, and disabilities where the effects may come and go.