Psychosis and related disorders in international classification of Disease-11 and their relationship to diagnostic and statistical Manual-5 and international classification of Disease-10

The two main classification systems, International Classification of disease (ICD) and diagnostic and statistical manual (DSM) have recently been revised. The revision of DSM-IV by the American Psychiatric Association is complete and DSM-5 has already arrived. The draft ICD-11 diagnostic guidelines for mental disorders are nearly complete and will soon be published as ICD-11. In this article we will briefly discuss the challenges in classifying psychotic disorders, the revised classification of these disorders in ICD-11 and how this differs from ICD-10 and DSM-5. Several changes to the classification of schizophrenia and other psychotic disorders have been made to increase the reliability, clinical use and validity of the diagnostic classification which are considered here