Perspectives on ICD-11 to understand and improve mental health diagnosis using expertise by experience (INCLUDE Study): an international qualitative study.

Developed in collaboration with WHO Department of Mental Health and Substance Abuse, this study (conducted in India, the UK, and the USA) integrated feedback from mental health service users into the development of the chapter on mental, behavioural, and neurodevelopmental disorders for ICD-11. The ICD-11 will be used for health reporting from January, 2022. As a reporting standard and diagnostic classification system, ICD-11 will be highly influential by informing policy, clinical practice, and research that affect mental health service users.