If you are concerned about whether a child might have ADHD, the first step is to talk with a healthcare provider to find out if the symptoms fit the diagnosis. The diagnosis can be made by a mental health professional, like a psychologist or psychiatrist, or by a primary care provider, like a pediatrician.

The American Academy of Pediatrics (AAP) recommends that healthcare providers ask parents, teachers, and other adults who care for the child about the child’s behavior in different settings, like at home, school, or with peers. Read more about the recommendations.

The healthcare provider should also determine whether the child has another condition that can either explain the symptoms better, or that occurs at the same time as ADHD.

How is ADHD diagnosed?

Healthcare providers use the guidelines in the American Psychiatric Association’s Diagnostic and Statistical Manual, Fifth edition (DSM-5)¹, to help diagnose ADHD. This diagnostic standard helps ensure that people are appropriately diagnosed and treated for ADHD. Using the same standard across communities can also help determine how many children have ADHD, and how public health is impacted by this condition.

DSM-5 Criteria for ADHD

People with ADHD show a persistent pattern of inattention and/or hyperactivity–impulsivity that interferes with functioning or development:

1. Inattention: Six or more symptoms of inattention for children up to age 16 years, or five or more for adolescents age 17 years and older and adults; symptoms of inattention have been present for at least 6 months, and they are inappropriate for developmental level.
2. Hyperactivity and Impulsivity: Six or more symptoms of hyperactivity-impulsivity for children up to age 16 years, or five or more for adolescents age 17 years and older and adults; symptoms of hyperactivity-impulsivity have been present for at least 6 months to an extent that is disruptive and inappropriate for the person’s developmental level.

In addition, the following conditions must be met:

• Several inattentive or hyperactive-impulsive symptoms were present before age 12 years.
• Several symptoms are present in two or more settings, (such as at home, school or work; with friends or relatives; in other activities).
• There is clear evidence that the symptoms interfere with, or reduce the quality of, social, school, or work functioning.
• The symptoms are not better explained by another mental disorder (such as a mood disorder, anxiety disorder, dissociative disorder, or a personality disorder). The symptoms do not happen only during the course of schizophrenia or another psychotic disorder.

Based on the types of symptoms, three kinds (presentations) of ADHD can occur:

• Combined Presentation: if enough symptoms of both criteria inattention and hyperactivity-impulsivity were present for the past 6 months
• Predominantly Inattentive Presentation: if enough symptoms of inattention, but not hyperactivity-impulsivity, were present for the past six months
• Predominantly Hyperactive-Impulsive Presentation: if enough symptoms of hyperactivity-impulsivity, but not inattention, were present for the past six months.

Because symptoms can change over time, the presentation may change over time as well.

Diagnosing  ADHD in Adults

ADHD often lasts into adulthood. To diagnose ADHD in adults and adolescents age 17 years or older, only 5 symptoms are needed instead of the 6 needed for younger children. Symptoms might look different at older ages. For example, in adults, hyperactivity may appear as extreme restlessness or wearing others out with their activity.

For more information about diagnosis and treatment throughout the lifespan, please visit the websites of the National Institute on Mental Health or the National Resource Center on ADHD. 

Reference

American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders, 5th edition. Arlington, VA., American Psychiatric Association, 2013.

Keywords: ADHD, Attention Deficit Disorder, ADHD Screening