Is Inattentive ADHD the Same as ADD? 

The terms inattentive ADHD vs ADD are often used interchangeably, but there are subtle differences in their meaning, particularly in how ADHD is diagnosed and discussed. ADD was the historical term used to describe a form of ADHD where individuals primarily struggle with inattention, without the more outward signs of hyperactivity or impulsivity. However, ADD is no longer used as an official diagnosis in the current diagnostic framework. 

Terminology and Historical Definition 

In the past, ADD was used to describe individuals who had trouble focusing, were forgetful, disorganised, or easily distracted, but didn’t exhibit the hyperactive and impulsive behaviours commonly associated with ADHD. Today, the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) uses the term inattentive-type ADHD to describe this condition. Essentially, inattentive ADHD and ADD refer to the same set of symptoms attention difficulties but ADD is an outdated term. 

Inattentive ADHD Today 

Inattentive ADHD is now considered one of the subtypes of ADHD, alongside hyperactive-impulsive ADHD and combined-type ADHD. People with inattentive ADHD often struggle with focus, organisation, following instructions, and staying on task. These symptoms may be overlooked because there’s no external hyperactivity or impulsivity, making it harder to identify. 

In short, inattentive ADHD vs ADD refers to the same condition, but ADD is an outdated term no longer used in modern diagnosis. It’s important to recognise that in current medical terminology, inattentive ADHD is the correct term for what was once called ADD. 

Visit providers like ADHD Certify for personal consultations and expert guidance tailored to your unique situation. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Signs, Symptoms, and Self-identification of ADHD.  

Avery Lombardi, MSc

Author

Avery Lombardi is a clinical psychologist with a Master’s in Clinical Psychology and a Bachelor’s in Psychology. She has professional experience in psychological assessment, evidence-based therapy, and research, working with both child and adult populations. Avery has provided clinical services in hospital, educational, and community settings, delivering interventions such as CBT, DBT, and tailored treatment plans for conditions including anxiety, depression, and developmental disorders. She has also contributed to research on self-stigma, self-esteem, and medication adherence in psychotic patients, and has created educational content on ADHD, treatment options, and daily coping strategies.

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.