Experience with ICD-10/DSM-IV substance use disorders.

Area of Science:

• Psychiatry
• Clinical Psychology
• Public Health

Background:

• Substance Use Disorders (SUDs) are classified under diagnostic systems like ICD-10 and DSM-IV.
• Both systems are largely based on the 'dependence syndrome' construct.
• Significant overlap exists in substance-induced syndromes.

Purpose of the Study:

• To compare the diagnostic criteria for Substance Use Disorders in ICD-10 and DSM-IV.
• To identify areas of agreement and divergence between the two classification systems.
• To evaluate the implications of potential cross-system reconciliation.

Main Methods:

• Comparative analysis of diagnostic criteria between ICD-10 and DSM-IV for Substance Use Disorders.
• Review of existing literature on the 'dependence syndrome' construct.
• Examination of the impact of diagnostic system changes on data comparability and clinical practice.

Main Results:

• General agreement exists between ICD-10 and DSM-IV on SUDs, based on the 'dependence syndrome'.
• Key differences include DSM-IV's 'abuse' versus ICD-10's 'harmful use', and differing inclusion of specific substance-induced disorders.
• Reconciliation presents conceptual ease but significant practical challenges and costs.

Conclusions:

• Cross-system reconciliation of SUD diagnoses requires careful consideration of benefits versus costs.
• Changes in diagnostic criteria can significantly impact prevalence rates and data comparability.
• Further research is needed on the comparative reliability and validity of 'abuse' and 'harmful use' diagnoses.