World Health Stat Q 1990 ;43(4):269-72
Division of Mental Health, World Health Organization, Geneva.
For the first time in the Ninth Revision of the International Classification of Diseases (ICD-9) the chapter on mental disorders contained short glossary definitions for each category. A number of changes in attitudes and policies at the international and national levels, particularly the reorientation of mental health programmes to include behavioural and psychosocial problems, came at an opportune time and had a positive influence on the development of proposals for the chapter on mental and behavioural disorders in the Tenth Revision (ICD-10). This in turn enabled WHO to undertaken an intensive and extensive assessment of international needs in the classification of mental disorders and, where the situation was not unequivocal, to organize field trials to provide the empirical data necessary for problem solution. Read More