Onset during development with deficits in intellectual, social, and practical areas of functioning; deficits manifest in reasoning, problem solving, and abstract thinking as confirmed by various standardized tests of intelligence. Additionally, adaptive functioning deficits manifested in failure to live independently and to be socially responsible. Deficits ;imit functioning in home, school, and community.
Persistent difficulties with onset during early development, in the learning and use of language in its various forms (written, spoken) due to deficits in comprehension o production. Deficits (as being significantly below accepted grade norms) manifested in reduced vocabulary., inability to express oneself due to limited sentence structure, and impaired discursive abilities. Difficulties are not attributable to an underlying medical condition.
Specific Learning Disorder
Characterized by problems in learning across a range of academic activities. Manifested by poor writing skills and reading comprehension, and/or difficulty in learning numerical concepts and applying numerical reasoning skills. Condition persists despite intervention to improve academic skills and is not better explained by intellectual disabilities, specific sensory deficits, or other extraneous factors.
Characterized by excessive clumsiness and awkwardness as manifested by poor learning and performance of coordinated motor skills, with performance significantly below accepted grade norms. Conditions' onset is early in development.
Stereotypic Movement Disorder:
Manifested by repetitious behaviors, or patterns of behaviors, lacking in any obvious purpose. Behavior may include rocking and self infliction of harm (biting or hitting).
Characterized by chronic, unexpected, quick, impromptu, nonfluid behaviors and/or vocalizations. In the case of Tourette's disorder, both motor and vocal tics are present concurrently; whereas in persistent (chronic) motor or vocal tic disorder, motor and vocal tics occur separately.
Other Neurodevelopmental Disorders
Characterized by the manifestation of symptoms of neurodevelopmental disorders that cannot easily be categorized as symptoms in this diagnostic category; disorders also lead to problems in occupational, social, or other significant areas of functioning.