Known as DSM-IV, the latest version of this mental health manual features a new coding system compatible with the ICD-10. Based on the results of field trials, a number of criteria sets are simplified for use in clinical settings: somatisation disorder; schizophrenia; generalised anxiety disorder; and antisocial personality disorder. The DSM-IV text is expanded to maximise clinical utility and educational value. Additional subsections of text are: Associated Laboratory Findings to note lab tests that may be relevant to a particular diagnosis; an Age-Related Features section, added to most disorders to note how the disorder presents differently throughout the life cycle; a Gender-Related Features section including presentations that vary by gender; a Culture-Related Features section for each disorder, to discuss how the disorder presents differently in different cultural settings; and the DSM-IV Substance Use section discussing each substance in great detail, describing patterns of use and substance-induced conditions.