The Italian ICD-11 field trial: clinical utility of diagnostic guidelines for schizophrenia and related disorders.

The 11th revision of the chapter on Mental, Behavioural and Neurodevelopmental Disorders has made substantive changes to the conceptualization of mental disorders which could have impacted on their reliability and clinical utility. Results of the Italian field studies, in line with those reported by the international sample, highlight that ICD-11 has been rated as highly clinically useful by participating clinician, more than the ICD-10. This could be considered a good reason to be optimistic about the implementation of the ICD-11 among global clinicians.Trial registration The study has been approved by the Ethical Review Board of the University of Campania "L. Vanvitelli" (N. 416, 2016).