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Concepts & Definitions

WHO Lexicon of alcohol and drug terms

In 1994 the World Health Organization developed a lexicon which aims to provide a set of definitions of terms concerning alcohol, tobacco and other drugs, which is useful to clinicians, administrators, researchers, and other interested parties in this field. Main diagnostic categories in the field are defined, as are key concepts in scientific and popular use. Social, as well as health, aspects of drug use and problems related to use are covered. The lexicon does not provide comprehensive coverage of every term; areas that have been excluded are, for example, production and marketing terms and slang terms.

Lexicon of alcohol and drug terms:

in English pdf, 2.85Mb

in Spanish pdf, 1.86Mb


ICD-10 classification of mental and behavioural disorders

The Tenth Revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) includes in Chapter V a detailed classification of over 300 mental and behavioural disorders. Its publication follows extensive field-testing by more than 100 clinical and research centres in 40 countries.

There are two main versions available: Clinical Descriptions and Diagnostic Guidelines and Diagnostic Criteria for Research. The former provides clinical descriptions detailing the principal signs and symptoms of each disorder, together with other important but less specific associated features, as well as comprehensive guidelines for their diagnosis. The latter version is intended to help those researching specific disorders to maximize the homogeneity of study groups. To this end, it sets out criteria that allow the selection of individuals with clearly similar symptoms and other characteristics

ICD-10 Clinical descriptions & diagnostic guidelines pdf, 44kb

ICD-10 Diagnostic criteria for research pdf, 48kb


Some diagnostic categories and terms