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The first three of these disorders are commonly called the autism spectrum disorders; the last two disorders are much rarer, and are sometimes placed in the autism spectrum and sometimes not. [2] [3] In May 2013, the Diagnostic and Statistical Manual–5th Edition (DSM-5) was released, updating the classification for pervasive developmental ...
PDD-NOS was one of four disorders collapsed into the diagnosis of autism spectrum disorder in the DSM-5, [3] and also was one of the five disorders classified as a pervasive developmental disorder (PDD) in the DSM-IV. [4] The ICD-10 equivalents also became part of its definition of autism spectrum disorder, as of the ICD-11.
These disorders differ from Pervasive developmental disorders (PPD), which uniquely describe a group of five developmental diagnoses, one of which is autism spectrum disorders (ASD). Pervasive developmental disorders reference a limited number of conditions whereas development disorders are a broad network of social, communicative, physical ...
Before the DSM-5 (2013) and ICD-11 (2022) diagnostic manuals were adopted, ASD was found under the diagnostic category pervasive developmental disorder. The previous system relied on a set of closely related and overlapping diagnoses such as Asperger syndrome and the syndrome formerly known as Kanner syndrome.
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by executive dysfunction occasioning symptoms of inattention, hyperactivity, impulsivity and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and developmentally-inappropriate. [3] [9] [10] [11]
Treatment often involves promoting better communication and socializing, and reducing behaviors that can be disruptive. Children with pervasive developmental disorders may be placed in special education classes, receive behavior modification training, speech, physical or occupational therapy, or medication.
In contrast, narcissistic personality disorder is an official, medical diagnosis that requires psychological evaluation to determine if the behavior is not only pervasive, but also "causes ...
Pervasive developmental disorder not otherwise specified – (PDD-NOS) was a pervasive developmental disorder, and is also considered an autism spectrum disorder. It was diagnosed when deficits in social interaction and verbal/nonverbal communication or stereotyped, repetitive behaviors and interests were present but criteria was not met for a ...