ADHD vs. ADD: What's the Actual Difference?
The official name changed decades ago. The old one did not receive the memo.
This page explains terminology. It cannot diagnose ADHD or determine a presentation. If these patterns are affecting your life, speak with a qualified healthcare professional. Read the full disclaimer.
The Short Version
ADD is an older diagnostic term. In current clinical terminology, the diagnosis is ADHD, with different presentations describing which characteristics are most prominent.
In 1980, the term Attention Deficit Disorder was introduced with “with hyperactivity” and “without hyperactivity” categories. By 1994, the name had changed to ADHD and the terminology had shifted toward inattentive, hyperactive-impulsive, and combined presentations.
Today, people often use “ADD” informally when they mean ADHD with predominantly inattentive characteristics. The older name remains familiar because language does not update itself just because a manual did.
You came to check whether ADD is still the right term and somehow ended up comparing the wording in medical manuals published decades apart. The acronym question is still waiting politely at the top of the page.
Clinical reviews describe what was previously called ADD within the current framework of ADHD presentations. Read the linked review.
Use the Terminology Without Diagnosing Yourself
- → Use ADHD when referring to the current diagnosis generally.
- → If someone says “ADD,” they often mean inattentive ADHD—but ask rather than assume.
- → Do not decide your presentation from one loud, quiet, focused, or chaotic day.
- → Write down one terminology question to take to a qualified professional if needed.
The Useful Bit
- → ADD is an older term, not a separate current diagnosis.
- → Current terminology uses ADHD and describes different presentations.
- → Everyday use of “ADD” remains common.
- → Terminology alone cannot identify someone’s presentation.
The terminology has been updated. Public vocabulary is proceeding at its own pace.