U.S. Health Care Professionals

ADHD Screening and Diagnosis

Suspicion of ADHD is followed by screening, and then, when appropriate, a comprehensive evaluation to establish the diagnosis.1,2 Select a topic below:

Diagnostic Evaluation

Reviews considerations for performing an initial diagnostic evaluation when ADHD is suspected.


Diagnostic Criteria

Reviews the specific criteria for establishing the diagnosis, as established by the DSM-5®.


Patient Age and ADHD

Discusses the possible variability of symptoms depending on patient age. Includes lists of potential symptoms by age.


Screening and Diagnostic Tools

Presents validated behavior scales developed to help screen for and diagnose ADHD in patients of various ages.



  1. Pliszka S; AACAP Work Group on Quality Issues. Practice parameter for the assessment and treatment of children and adolescents with attention-deficit/hyperactivity disorder. J Am Acad Child Adolesc Psychiatry. 2007;46(7):894-921.
  2. Subcommittee on Attention-Deficit/Hyperactivity Disorder, Steering Committee on Quality Improvement and Management. ADHD: clinical practice guideline for the diagnosis, evaluation, and treatment of attention-deficit/hyperactivity disorder in children and adolescents. Pediatrics. 2011:128(5):1007-1022, SI1-SI21.