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DSM-5

2013 edition of the Diagnostic and Statistical Manual of Mental Disorders

  • 28 min read
  • 6 chapters

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Through Diagnostic and Statistical Manual of Mental Disorders, Taxonomy and Roman numerals

The DSM-5 is not a major revision of the DSM-IV-TR, but the two have significant differences. Changes in the DSM-5 include the re-conceptualization of Asperger syndrome from a distinct disorder to an autism spectrum disorder; the elimination of subtypes of schizophrenia; the deletion of the "bereavement exclusion" for depressive disorders; the renaming and reconceptualization of gender identity disorder to gender dysphoria; the inclusion of binge eating disorder as a discrete eating disorder; the renaming and reconceptualization of paraphilias, now called paraphilic disorders; the removal of the five-axis system; and the splitting of disorders not otherwise specified into other specified disorders and unspecified disorders.

Many authorities criticized the fifth edition both before and after it was published. Critics assert, for example, that many DSM-5 revisions or additions lack empirical support; that inter-rater reliability is low for many disorders; that several sections contain poorly written, confusing, or contradictory information; and that the pharmaceutical industry may have unduly influenced the manual's content, given the industry association of many DSM-5 workgroup participants. The APA itself has published that the inter-rater reliability is low for many disorders, including major depressive disorder and generalized anxiety disorder.

Content and structure

The DSM-5 is divided into three sections, using Roman numerals to designate each section.

Section I: DSM-5 basics

Section I describes DSM-5 chapter organization, its change from the multiaxial system, and Section III's dimensional assessments. The DSM-5 dissolved the chapter that includes "disorders usually first diagnosed in infancy, childhood, or adolescence" opting to list them in other chapters. A note under Anxiety Disorders says that the "sequential order" of at least some DSM-5 chapters has significance that reflects the relationships between diagnoses.

The introductory section describes the process of DSM revision, including field trials, public and professional review, and expert review. It states its goal is to harmonize with the International Classification of Diseases (ICD) systems and share organizational structures as much as is feasible. Concern about the categorical system of diagnosis is expressed, but the conclusion is the reality that alternative definitions for most disorders are scientifically premature.

Section II: Diagnostic criteria and codes

Section II contains chapters describing types of mental disorders, such as dissociative, neurodevelopmental, and personality disorders. The chapters begin with a description of the group of disorders in question, followed by the specific diagnoses, such as dissociative identity disorder or autism spectrum disorder. For each disorder, a set of diagnostic criteria is presented, followed by descriptions regarding things such as of diagnostic features and prevalence, as well as a list of other disorders to consider for a differential diagnosis, along with descriptions of the differences between these.

Section III: Emerging measures and models

Section III includes dimensional measures for the assessment of symptoms, criteria for the cultural formulation of disorders and the Alternative DSM-5 Model for Personality Disorders – a hybrid-dimensional-categorical model of personality disorders, as well as a description of the currently studied clinical conditions. It presents selected tools and research techniques focused on diagnosis, taking into account the sociocultural context.

Alternative DSM-5 Model for Personality Disorders

The Alternative DSM-5 Model for Personality Disorders (AMPD), introduced in Section III of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), is a dimensional–categorical hybrid model of personality disorders, meaning that it integrates a dimensional model of personality disorders with a categorical one. This is achieved through mapping of individual, categorical personality disorders to specific combinations of impairment in personality functioning and pathological personality traits.

The alternative model features the following specific personality disorders: antisocial, avoidant, borderline, narcissistic, obsessive–compulsive, and schizotypal, constituting a reduction of entities, as the standard model contains the diagnoses of dependent, histrionic, paranoid, and schizoid personality disorders in addition to those in the AMPD. It also contains a trait specified diagnosis for manifestations of personality disorder not covered by the specific diagnoses, such as the four omitted categories.

Designed to address limitations of the categorical classification of personality disorders – such as heterogeneous PD categories, excessive comorbidity, arbitrary thresholds and insufficient diagnostic precision – the AMPD has generally been found to hold validity; however, it remains subject to ongoing debate and research in regards to aspects such as the relationship between traits and functioning level.

Conditions for further study

These conditions and criteria are set forth to encourage future research and are not meant for clinical use. This chapter includes the following conditions:

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