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ICD11

Mental, behavioural or neurodevelopmental disorders (F01–F99)

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Mental, behavioural or neurodevelopmental disorders is a chapter in ICD-11 that includes conditions characterized by disturbances in cognition, emotional regulation, behaviour, or neurodevelopmental functioning. These disorders may affect how individuals think, feel, perceive, or interact with others and can significantly influence daily functioning, learning, work performance, and social relationships.

This chapter encompasses a broad range of conditions, including mood disorders, anxiety disorders, psychotic disorders, substance use disorders, and neurodevelopmental conditions such as autism spectrum disorder and attention deficit hyperactivity disorder. Standardized classification within this chapter supports accurate diagnosis, evidence-based treatment, and mental health research, while also guiding service planning, policy development, and efforts to reduce stigma and improve mental health care worldwide.

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Frequently asked questions

This chapter includes conditions affecting cognition, emotion, behavior, and neurodevelopment.

It includes mood disorders, anxiety disorders, psychotic disorders, autism spectrum disorder, ADHD, and substance-related disorders.

Terminology has been updated to be more descriptive, person-centered, and less stigmatizing.

Yes. Neurodevelopmental disorders and conditions across the lifespan are included.

ICD-11 introduces updated diagnostic concepts and improved clinical usability.

It supports effective treatment, service planning, research, and mental health policy development.

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