[Applicability of the psychiatric classification ICD-10 in schizophrenia, schizotypal disorder and delirious ideas disorder].

Schizophrenia is the commonest and most important member of this group. Schizotypical disorder possesses many of the characteristic features of schizophrenic disorder and is probably genetically related to them, but this disorder does not exhibit the hallucinations, delusions, and gross behavioural disturbances of the schizophrenia itself, and so does not always come to medical attention. Most of the delusional disorders are a heterogeneous and ill understood collection of disorders which can conveniently be divided by their typical duration into a group of persistent delusional disorders and a larger group of acute and transient psychotic disorders. Simultaneously a Psychiatry and Occupational therapist studied the applicability of the ICD-10 in comparison with DSM-III-R in the diagnosis of Schizophrenia, Schizotypical disorder and Delusional disorder. Thirty patients were diagnosed in both classification systems, this allow us to describe the difficulties and advantages of ICD-10 in this group of disorders.