What Are the Specific Criteria for Diagnosing ADHD in the DSM-5? 

The ADHD diagnostic criteria DSM-5 offer a comprehensive framework for clinicians to accurately identify and diagnose ADHD in individuals. According to the DSM-5, the diagnosis is based on a set of DSM-5 symptoms that must be present for at least six months, with symptoms clearly impairing functioning in social, academic, or occupational settings. 

There are two main categories of symptoms: inattention and hyperactivity-impulsivity. For a diagnosis of ADHD, individuals must exhibit at least six symptoms from one or both categories. These symptoms can vary widely and may include difficulty focusing, forgetfulness, excessive fidgeting, and impulsive decision-making. For children, symptoms must be present before the age of 12, while for adults, symptoms may be traced back to childhood but may not be as noticeable until later in life. 

Additionally, the diagnostic process includes evaluating the duration of symptoms, the impact on multiple areas of life, and ruling out other possible causes for the symptoms. This ensures that the diagnosis is accurate and not attributed to other medical or psychological conditions. 

How It Helps 

The ADHD diagnostic criteria DSM-5 guide clinicians in providing a clear and systematic approach to identifying ADHD. By following these criteria, they can assess the severity of symptoms, consider the presence of comorbid conditions, and implement effective treatment strategies for those with ADHD. 

Visit providers like ADHD Certify for personal consultations and expert advice tailored to your needs.   

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to DSM-5 Diagnostic Guidelines.  

Harriet Winslow, BSc

Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

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.