of Changes from DSM-IV-TR to DSM-5
Changes made to the DSM-5 diagnostic criteria and texts are outlined in this chapter in the same order in which they appear in the DSM-5 classification. This is not an exhaustive guide; minor changes in text or wording made for clarity are not described here. It should also be noted that Section I of DSM-5 contains a description of changes pertaining to the chapter organization in DSM-5, the multiaxial system, and the introduction of dimensional assessments (in Section III).
Terminology
The phrase “general medical condition” is replaced in DSM-5 with “another medical condition” where relevant across all disorders.
Neurodevelopmental Disorders
Intellectual Disability (Intellectual Developmental Disorder)
Diagnostic criteria for intellectual disability (intellectual developmental disorder) emphasize the need for an assessment of both cognitive capacity (IQ) and adaptive functioning. Severity is determined by adaptive functioning rather than IQ score. The term mental retardation was used in DSM-IV. However, intellectual disability is the term that has come into common use over the past two decades among medical, educational, and other professionals, and by the lay public and advocacy groups. Moreover, a federal statue in the United States (Public Law 111-256, Rosa’s Law) replaces the term “mental retardation with intellectual disability. Despite the name change, the deficits in cognitive capacity beginning in the developmental period, with the accompanying diagnostic criteria, are considered to constitute a mental disorder. The term intellectual developmental disorder was placed in parentheses to reflect the
World Health Organization’s classification system, which lists “disorders” in the International Classification of Diseases (ICD; ICD-11 to be released in 2015) and bases all “disabilities” on the International
Classification of Functioning, Disability, and Health (ICF).