| Specific developmental disorder |
Specific developmental disorders (SDD) was a classification of disorders characterized by delayed development in one specific area or areas.[1] [2] [3] [4] Specific developmental disorders were contrasted to pervasive developmental disorders[4] which were characterized by delays in the development of multiple basic functions including socialization and communication.[5]
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.[2] [6]
In the third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III),[7] SDD was opposed to the pervasive developmental disorders (PDD). There were two factors that were considered:
In the DSM-IV, specific developmental disorders were no longer grouped together.[9] Instead they were reclassified as communication disorders, learning disorders, and motor skills disorders.[3]
| ICD-10[10] | DSM-IV-TR[11] | ICD-11[12] |
|---|---|---|
Specific developmental disorders of speech and language (F80):
| Communication disorders:
| Developmental Speech & Language Disorders (6A01):
|
Specific developmental disorders of scholastic skills (F81):
| Learning disorders
| Developmental learning disorder (6A03):
|
| Motor skills disorders: | Developmental motor coordination disorder (6A04) | |
|