Specific developmental disorder
Medical condition
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Related on Lably
Through Socialization and Diagnostic and Statistical Manual of Mental Disorders
ICD-10 taxonomy
The tenth revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) has four categories of developmental disorders: specific developmental disorders of speech and language, specific developmental disorders of scholastic skills, specific developmental disorder of motor function, and mixed specific developmental disorder.
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DSM-III taxonomy
In the third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III), SDD was opposed to the pervasive developmental disorders (PDD). There were two factors that were considered:
- The specificity of the impairment: in SDD there is one single domain that is affected, whereas in PDD multiple areas of functioning are affected.
- The nature of the impairment: development in SDD is delayed but not otherwise abnormal, whereas in PDD there are behavioral deviations that are not typical for any developmental stage.
In the DSM-IV, specific developmental disorders were no longer grouped together. Instead they were reclassified as communication disorders, learning disorders, and motor skills disorders.