Why Was Asperger’s Removed from DSM-5 Autism Criteria?

PostedNovember 15, 2025

UpdatedNovember 15, 2025

ByMy Patient Advice

Author: Lucia Alvarez, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

The Asperger’s removal from DSM-5 was a significant change in the way autism spectrum disorder (ASD) is classified. In the past, Asperger’s syndrome was considered a separate diagnosis within the autism spectrum, but the DSM-5 revision eliminated this distinction, recognising Asperger’s as part of the broader autism spectrum. The primary reason for this change was to simplify the diagnostic process and improve consistency in identifying individuals with ASD.

Reasons for Asperger’s Removal from DSM-5

Here’s why Asperger’s removal from DSM-5 occurred:

Autism Spectrum Update

The DSM-5 made a decision to merge Asperger’s syndrome with other forms of autism under the umbrella term “autism spectrum disorder.” This change was based on the understanding that the behaviours associated with Asperger’s are not significantly different from other autism-related behaviours, and that the distinction between Asperger’s and autism was often arbitrary.

Diagnostic Change

The DSM-5 revision aimed to create a more consistent and reliable approach to diagnosing ASD. By removing Asperger’s distinction, the diagnostic process became more streamlined, allowing for a clearer and more accurate classification of autism. It also reflected the growing understanding that autism exists on a spectrum, with varying levels of severity.

DSM-5 Revision

The decision to remove Asperger’s from the DSM-5 autism criteria aligns with the ongoing shift in the field of autism research and practice towards recognising the wide range of experiences and needs across the spectrum, without the need for separate categories. The revision helped ensure that more individuals could be diagnosed and receive the appropriate support based on their specific needs.

In summary, the Asperger’s removal from DSM-5 aimed to improve clarity, reduce diagnostic inconsistencies, and recognise autism as a spectrum of behaviours, enhancing how ASD is diagnosed and supported. Visit providers like Autism Detect, who offer tailored consultations and expert guidance.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Diagnostic Criteria (DSM-5, ICD-11).

Lucia Alvarez, MSc

Author

Lucia Alvarez is a clinical psychologist with a Master’s in Clinical Psychology and extensive experience providing evidence-based therapy and psychological assessment to children, adolescents, and adults. Skilled in CBT, DBT, and other therapeutic interventions, she has worked in hospital, community, and residential care settings. Her expertise includes grief counseling, anxiety management, and resilience-building, with a strong focus on creating safe, supportive environments to improve mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.