What Is the Recommended Process for Diagnosing ADHD According to DSM-5? 

The DSM-5 ADHD diagnosis provides a structured approach to identifying and diagnosing ADHD, ensuring accuracy and consistency across clinical settings. The diagnosis process begins with a comprehensive evaluation, which includes a detailed history of the individual’s behaviour, symptom onset, and impact on daily life. This helps distinguish ADHD from other conditions that may share similar symptoms. 

According to DSM-5 guidelines, the individual must demonstrate at least six symptoms of inattention and/or hyperactivity-impulsivity for children under 17, and at least five for individuals over 17. These symptoms must cause significant functional impairment in two or more settings, such as at school, work, or home. Additionally, symptoms should be present for at least six months, with evidence that they are inconsistent with the individual’s developmental level. 

The diagnosis process also involves ruling out other potential causes for the symptoms, such as anxiety, depression, or learning disabilities. Clinicians often use rating scales and behaviour checklists, along with input from parents, teachers, or other people who interact regularly with the individual, to gather comprehensive information about the symptoms. 

How It Helps 

By following the DSM-5 ADHD diagnosis process, clinicians can make an accurate and reliable diagnosis, ensuring that the right treatment plan is developed. Proper adherence to DSM-5 guidelines allows for the identification of ADHD early, leading to more effective management of the condition and better long-term outcomes. 

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.