Many disabilities are classified as Physical Disabilities.  Please see the following categories for more information:

ALS
Amputation
Arthritis / Fibromyalgia
Cancer
Cerebral Palsy
Chronic Pain
Diabetes
Multiple Sclerosis
Muscular Dystrophy
Multiple Sclerosis
Neurological
Parkinsons
Polio/Post Polio
Spinal Cord Injury
Stroke
Traumatic Brain Injury