Classification of mental and behavioral disorders

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Last update: Saturday, 30 Jan 2021 at 12.11 pm.

The aim of classifying mental disorders[edit | edit source]

  • Identify groups of patients who are similar in their clinical features, course of disease, outcome and response to treatment, aiding individual clinical management;
  • Provide a common language for communication between patients, professionals and researchers;
  • Improve the reliability (reproducibility among ≠ settings) and validity (correctness → by examining the consistency of symptoms, treatment responses, long term prognosis, genetic and biological correlates) of Dx

In Europe/rest of the world: ICD-10[edit | edit source]

  • International Code for Diseases, 10th edition
  • Published originally in 1993 by the WHO
  • ICD-10 → ICD-11 (First release in Jan. 1 2022)
  • F00-99
    • F.00 Dementia in Alzheimer´s disease (F00-F09: Organic mental disorders)
    • F10-19 Mental and behavioral disorders due to psychoactive substance (10 alcohol, 14 cocaine)
    • F20-29: Schizophrenia, schizotypal and delusional disorders...

America: DSM-V[edit | edit source]

  • Diagnostic Statistical Manual for Mental Disorders by the American Psychiatric Association
  • DSM V (since 2013): American Society of Psychiatry
  • They are already working now on the DSM- Vl
  • Structure
    • Section l: Introduction
    • Section ll: Diagnostic Criteria and codes
      • Neurodevelopmental disorders : e.g. autism spectrum disorder, intellectual disability
      • Schizophrenia spectrum and other psychotic disorders
      • Bipolar and related disorders
      • Depressive disorders
      • ...
    • Section lll: emerging measures and models

Differences of the ICD-10 and DSM-V[edit | edit source]

  • ICD-10 + DSM-5 are categorical systems describing a group of discrete conditions (giving operational definitions, specifying inclusion and exclusion criteria, such as number of symptoms and minimal durations)
  • Concrete examples
    • Bipolar disorder (ICD-10) vs Bipolar l/ll (DSM-V)
    • acute polymorphic disorder with or without features of schizophrenia (ICD-10) vs Brief psychotic disorder (DSM-V)
    • Pervasive neurodevelopmental disorders (ICD-10) vs Autism spectrum disorder (DSM-V)
    • Mental retardation (ICD-10) vs intellectual disability (DSM-V)