Classification ICD The WHO first listed the condition in the 6th revision of the International Classification of Diseases ICD-6 (1949) and it stayed in the manual until the present version ICD-10. ICD-9 The ICD-9<unk>  description: ICD-10 These are the current criteria: The ICD is currently in revision 10, and the ICD-11 was accepted in May 2019 will come into effect in 2022. In the ICD-11, there is no longer a diagnostic category of<unk>  schizophrenia, and all subtypes of schizophrenia have been eliminated. DSM<unk>  also appeared in the first two editions of the DSM as an official diagnosis: But after that, it was omitted in later versions and has since then never returned as a formal diagnosis in any DSM. However, DSM-IV (1994) and DSM-IV-TR (2000) included<unk>  Schizophrenia in the appendix under the proposed category of<unk>  deteriorative disorder. The provisional research criteria for it were:
Simple-type schizophrenia
Haltlose personality disorder
Disorganized schizophrenia
Pseudoneurotic schizophrenia
Unitary psychosis
Tardive psychosis
Basic symptoms of schizophrenia
Brief psychotic disorder