Physical disability
A person with physical disability is not able to execute distinctive activities associated with movement, both the person himself and objects. Such immobility, resulting from disorder of the muscular or skeletal system, may include disability resulting from injury or disease.
1. Loss of parts of body
2. Paralysis without loss of body-parts
3. Joint disease
4. Bone disease: Osteogenesis imperfecta, scoliosis
5. Muscle disease
6. Neuro-muscular disabilities which incur a certain degree of physical disability
- muscular dystrophy
- paraplegias/tetraplegia
- poliomyelitis
- spina bifida
- stroke
- head injury

Hearing disability
A person with hearing disability can only perceive sounds of high levels. 
1. Mild hearing disability: a person with mild hearing loss who can perceive sounds below 50db.
2. Moderate hearing disability: a person with moderate hearing loss who can perceive sounds between 50 to 70db.
3. Severe hearing disability: a person with severe hearing loss who can only perceive sounds above 71db.

Visual disability
A person who has visual disability would have either low vision or blindness.
Low Vision is visual acuity of between 6/24 (20/70) and 6/60 in the better eye after correction.
Blindness is visual acuity of less than 6/60 in the better eye after correction or a visual field of less than 10 degrees.

Intellectual disability
A person who has an intellectual disability has low levels of intelligence quotient (IQ). For purposes of classification, conditions that are usually accompanied by intellectual disability, such as Down Syndrome, are listed under this category.
1. Mild intellectual disability: IQ between 50 and 70
2. Moderate intellectual disability: IQ between 35 to 49
3. Severe intellectual disability: IQ below 34