DSM-5

The DSM-5 was developed over a 14-year process involving more than 160 experts from around the world, organized into 13 workgroups. The American Psychiatric Association (APA) released a draft for public comment in 2010, and the final version was published on May 18, 2013, after extensive field trials to test the reliability of proposed criteria.¹ The revision process was notable for its emphasis on transparency and international input, although it also faced criticism regarding conflicts of interest among panel members and the scientific evidence behind some changes.

The DSM-5 introduced several landmark changes. The most prominent was the consolidation of autistic disorder, Asperger's disorder, and childhood disintegrative disorder into a single diagnosis of autism spectrum disorder (ASD), with severity levels based on support needs.² It also replaced the multiaxial system with a single axis, removed the bereavement exclusion for major depressive disorder, and introduced new disorders such as disruptive mood dysregulation disorder and hoarding disorder. The manual adopted a lifespan perspective, with disorders grouped by developmental stages rather than by symptom similarity.

The DSM-5 sparked considerable debate. Critics, including former DSM-IV task force chair Allen Frances, argued that some changes, such as the lowering of the ADHD diagnostic threshold and the inclusion of mild neurocognitive disorder, risked turning normal human experiences into mental illness—a phenomenon dubbed 'diagnostic inflation.'³ The removal of the bereavement exclusion was particularly contentious, as it allowed the diagnosis of major depressive disorder after a loss within two weeks, which some feared would pathologize grief. Additionally, the National Institute of Mental Health (NIMH) announced that it would redirect research funding away from DSM categories toward its own Research Domain Criteria (RDoC) framework, citing the DSM's lack of biological validity.

Beyond the headline changes, the DSM-5 contains several lesser-known features. It introduced a 'Section III' with emerging measures and models, including the Personality Inventory for DSM-5 (PID-5) and the Cultural Formulation Interview, which helps clinicians assess cultural influences on mental health.⁴ The manual also added specifiers for conditions like 'with anxious distress' for depression and 'with mixed features' for bipolar disorder. A notable omission was the rejection of 'internet gaming disorder' as a formal diagnosis, though it was placed in Section III as a condition for further study. The DSM-5 also changed the term 'mental retardation' to 'intellectual disability' and 'gender identity disorder' to 'gender dysphoria,' reflecting shifts in societal and clinical understanding.

Autism spectrum disorder

A neurodevelopmental disorder characterized by persistent deficits in social communication and interaction, and restricted, repetitive patterns of behavior, interests, or activities.

Disruptive mood dysregulation disorder

A childhood condition involving severe, chronic irritability and frequent temper outbursts that are out of proportion to the situation.

Hoarding disorder

A mental disorder characterized by persistent difficulty discarding possessions, regardless of their actual value, leading to clutter that compromises living spaces.

Research Domain Criteria (RDoC)

A research framework developed by the NIMH that aims to classify mental disorders based on dimensions of observable behavior and neurobiological measures.