ADD vs. ADHD: What's the Difference?

ADD and ADHD: one condition, two names

Attention-deficit/hyperactivity disorder (ADHD) is the official name for the condition. Clinicians no longer diagnose "ADD" as a separate disorder. When people say ADD today, they usually mean ADHD without obvious hyperactivity: trouble focusing, organizing and finishing things, without the restless, on-the-go behavior many people picture.

That pattern is the predominantly inattentive presentation. The American Psychiatric Association (APA) and NIMH both describe ADHD as one disorder that can show up as mostly inattention, mostly hyperactivity and impulsivity, or both.

How the name changed from ADD to ADHD

The name has changed with editions of the APA's Diagnostic and Statistical Manual of Mental Disorders (DSM), as a 2010 history of the diagnosis (Lange 2010) and a review of the DSM-5 changes (Epstein and Loren 2013) describe.

Year	Manual	Name	What changed
1968	DSM-II	Hyperkinetic reaction of childhood	Hyperactivity was the main focus.
1980	DSM-III	Attention deficit disorder (ADD), with or without hyperactivity	Attention became the core problem. Hyperactivity was no longer required.
1987	DSM-III-R	Attention-deficit hyperactivity disorder (ADHD)	Renamed ADHD. The two subtypes were dropped, and ADD without hyperactivity moved to a residual category, "undifferentiated ADD."
1994	DSM-IV	ADHD	Three subtypes: predominantly inattentive, predominantly hyperactive-impulsive and combined.
2013	DSM-5	ADHD	"Subtypes" became "presentations." Symptoms must start before age 12 instead of 7. People 17 and older need five symptoms instead of six.

So ADD was never only the inattentive type. In 1980 it covered forms both with and without hyperactivity (Lange 2010). The manual is now in its DSM-5-TR edition, and APA's patient guidance still describes ADHD with the same three presentations.

Why "presentation"? Epstein and Loren explain that symptoms often shift over a person's life rather than staying fixed. The word describes your current symptoms, which may change.

The three ADHD presentations

Presentation	Threshold for people 17 and older	How it can look in adults
Predominantly inattentive (what people often call ADD)	At least five of nine inattention symptoms, without meeting the hyperactive-impulsive threshold	Careless mistakes, drifting focus in meetings or long reading, losing things, forgetting bills and appointments, putting off reports and forms
Predominantly hyperactive-impulsive	At least five of nine hyperactive-impulsive symptoms, without meeting the inattention threshold	Feeling restless, talking a lot, interrupting, finishing other people's sentences, trouble waiting your turn
Combined	At least five symptoms in both groups	A mix of both patterns

For any presentation, symptoms must have lasted at least 6 months, started before age 12, shown up in two or more settings, such as home and work, and interfered with daily life. Children 16 and younger need six symptoms instead of five (NIMH; APA).

A presentation describes which symptoms dominate, not how severe they are. DSM-5 added a separate severity rating for that, so any presentation, including the inattentive one, can be rated mild, moderate or severe (Epstein and Loren 2013).

ADD (inattentive ADHD) in adults

Inattention tends to last. NIMH notes that inattentive symptoms often persist as people get older, while hyperactivity and impulsivity are more likely to decline. Epstein and Loren describe many children diagnosed with the combined presentation later fitting the predominantly inattentive one. So an adult's presentation may differ from the one they had as a child.

In adults, inattentive ADHD can look like this, based on the APA's symptom list:

• Missing details or making careless mistakes at work
• Losing focus during conversations, lectures or long reading
• Seeming not to listen, or being somewhere else in your head
• Starting tasks but getting side-tracked before finishing
• Poor time management and missed deadlines
• Avoiding work that takes sustained mental effort, such as reports and forms
• Losing keys, wallet, phone or glasses
• Getting distracted by unrelated thoughts
• Forgetting to return calls, pay bills or keep appointments

The APA adds that in adults, hyperactivity and impulsivity may decrease or show up as extreme restlessness, while inattention may persist.

Inattentive symptoms can be less obvious to other people. NIMH notes that girls and women are more likely to be diagnosed with inattentive ADHD, and our guide to ADHD in women covers why it's often found late.

Other conditions can look like inattentive ADHD. NIMH lists stress, sleep disorders, anxiety and depression. The APA adds learning disorders, substance use, head injuries, thyroid conditions and some medications. That's why a full evaluation matters.

How ADHD is diagnosed

There's no blood test or routine brain scan for ADHD (APA). According to NIMH, a licensed clinician usually:

1. Asks about your current symptoms and how they affect work, home and relationships
2. Looks back at your childhood, often with school reports or input from family or a partner, because symptoms must have started before age 12
3. Uses rating scales or symptom checklists
4. Reviews your mood and health history to rule out conditions that look like ADHD

If you meet the criteria, the clinician records the presentation that fits your symptoms over the past 6 months. It describes now, not forever (Epstein and Loren 2013).

A screen is a reasonable first step. Our free ADHD test uses the six-question ASRS v1.1 screener (Kessler 2005). It shows whether your symptoms are worth an evaluation, but it can't diagnose ADHD or tell you which presentation you have. To learn who can make the diagnosis, see who can diagnose ADHD.

At Anywhere Clinic, an adult ADHD evaluation happens by secure video with a licensed psychiatric clinician (physician, nurse practitioner or physician assistant, depending on your state). Self-pay is $150 per visit. Insurance coverage depends on your state and plan; check your coverage. Questions? Call (702) 848-2256. Georgia requires an in-person visit within 12 months. Visits before then can be by secure video. Call (702) 848-2256 to schedule.

Good to know

This article is educational and is not a substitute for medical advice, diagnosis or treatment. Medication decisions are made by your clinician after an evaluation, and no medication is guaranteed. We can't prescribe controlled substances, including stimulants, in Alabama, Arkansas, Hawaii, Louisiana, Maine, Massachusetts, Minnesota, Missouri, Oklahoma, Pennsylvania or West Virginia. Federal telehealth rules for controlled substances are temporary through Dec 31, 2026 and may change.

If you are in crisis, call or text 988, call 911, or go to the nearest emergency room.

Frequently Asked Questions

Is ADD the same as ADHD?

Yes. ADD is an older name from 1980 (DSM-III). Today all forms are called ADHD, and what people mean by ADD is usually the predominantly inattentive presentation. It's the same condition, diagnosed the same way.

What is the difference between ADD and ADHD?

There's no clinical difference today. ADHD is the current name, and it has three presentations: predominantly inattentive, predominantly hyperactive-impulsive and combined. People who say ADD usually mean the inattentive presentation, where focus and organization problems stand out more than restlessness.

Is ADD still a diagnosis?

No. ADD was the official name in DSM-III (1980). The 1987 revision renamed it attention-deficit hyperactivity disorder, and since DSM-5 (2013) clinicians record a presentation instead of a subtype. Today a clinician would diagnose ADHD, predominantly inattentive presentation.

What is inattentive ADHD?

It's the presentation where inattention symptoms meet the diagnostic threshold but hyperactive-impulsive symptoms don't. People 17 and older need at least five of nine inattention symptoms, such as missing details, losing focus and forgetting appointments, lasting at least 6 months and causing problems in more than one setting.

Do I have ADD or ADHD?

If you have it, it's ADHD either way. The real question is which presentation fits your symptoms now, and only an evaluation can answer that. A good first step is our free ADHD test, then an adult ADHD evaluation if your results or day-to-day struggles point that way.

Do ADD and ADHD use the same medication?

The same medications are used. Your clinician decides after an evaluation. Whether medication fits, and which one, depends on your symptoms, health history and other conditions, and no medication is guaranteed.

Sources

• Lange KW, et al. The history of attention deficit hyperactivity disorder. Atten Defic Hyperact Disord, 2010 (PubMed)
• Epstein JN, Loren REA. Changes in the definition of ADHD in DSM-5: subtle but important. Neuropsychiatry (London), 2013 (PubMed)
• American Psychiatric Association: What Is ADHD?
• American Psychiatric Association: DSM-5-TR
• NIMH: ADHD: What You Need to Know
• NIMH: ADHD in Adults: 4 Things to Know
• Kessler RC, et al. The WHO Adult ADHD Self-Report Scale (ASRS). Psychol Med, 2005 (PubMed)
• Federal Register: Fourth extension of DEA telemedicine flexibilities, 2025 (govinfo)