Specific developmental disorder

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Specific developmental disorder

Specific developmental disorders (SDD) are disorders in which development is delayed in one specific area or areas,[1] and in which basically all other areas of development are not affected.[2] Specific developmental disorders are as opposed to pervasive developmental disorders[2] that are characterized by delays in the development of multiple basic functions including socialization and communication.[3]

ICD-10 taxonomy[edit]

The tenth revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) has four categories of specific developmental disorder: specific developmental disorders of speech and language, specific developmental disorders of scholastic skills, specific developmental disorder of motor function, and mixed specific developmental disorder.[4]

DSM taxonomy[edit]

In the third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III),[5] 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.[6]
  • 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.[6]

In the fourth edition of the DSM specific developmental disorders are no longer grouped together.[7] Instead they are reclassified as communication disorders, learning disorders, and motor skills disorders.[1]

Comparison and conditions[edit]

ICD-10[8] DSM-IV-TR[9] ICD-11[10]

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)

  • Mixed specific developmental disorder (F83)

See also[edit]


  1. ^ a b Ahuja Vyas: Textbook of Postgraduate Psychiatry (2 Vols.), 2nd ed. 1999
  2. ^ a b http://www.medterms.com/script/main/art.asp?articlekey=11249
  3. ^ http://www.ninds.nih.gov/disorders/pdd/pdd.htm
  4. ^ "ICD-10 Version:2010". apps.who.int. Retrieved 10 April 2018.
  5. ^ Dennis Cantwell & Lorian Baker: Developmental Speech and Language Disorders, 1987, page 4
  6. ^ a b Sir Michael Rutter, Eric A. Taylor: Child and Adolescent Psychiatry, 4th ed. 2005
  7. ^ Robert Jean Campbell, III: Campbell's Psychiatric Dictionary, 2003, page 184
  8. ^ http://apps.who.int/classifications/icd10/browse/2010/en#/F80 Reference for all ICD-10 disorders mentioned in the table.
  9. ^ http://behavenet.com/apa-diagnostic-classification-dsm-iv-tr#301 Reference for all DSM-IV-TR disorders mentioned in the table.
  10. ^ https://icd.who.int/browse11/l-m/en#/http%3a%2f%2fid.who.int%2ficd%2fentity%2f334423054 Reference for all ICD-11 disorders mentioned in the table

External links[edit]