Intellectual Disability

Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)

Also Known As:

Idiocy; Mental Deficiency; Retardation, Mental; Deficiency, Mental; Intellectual Development Disorder; Mental Retardation, Psychosocial; Deficiencies, Mental; Development Disorder, Intellectual; Development Disorders, Intellectual; Disabilities, Intellectual; Disorder, Intellectual Development; Disorders, Intellectual Development; Intellectual Development Disorders; Intellectual Disabilities; Mental Deficiencies; Mental Retardations, Psychosocial; Psychosocial Mental Retardation; Psychosocial Mental Retardations; Retardation, Psychosocial Mental; Retardations, Psychosocial Mental; Disability, Intellectual; Mental Retardation

Nervous System Diseases: 14737
- Neurologic Manifestations: 7223
  - Neurobehavioral Manifestations: 1632
    - Intellectual Disability: 8222
Signs and Symptoms Pathological Conditions
- Signs and Symptoms
  - Neurologic Manifestations: 7223
    - Neurobehavioral Manifestations: 1632
      - Intellectual Disability: 8222
Behavior and Behavior Mechanisms
- Neurobehavioral Manifestations: 1632
  - Intellectual Disability: 8222
Mental Disorders: 25040
- Neurodevelopmental Disorders: 3318
  - Intellectual Disability: 8222

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