Diagnostic Criteria and Process for Attention Deficit Hyperactivity Disorder (ADHD)

Core Diagnostic Requirements

The American Academy of Pediatrics recommends that evaluation should be initiated for any child or adolescent age 4 years to 18 years who presents with academic or behavioral problems and symptoms of inattention, hyperactivity, or impulsivity 1, 2
Diagnosis requires meeting DSM-5 criteria with symptoms causing impairment in more than one setting (home, school, social environments) 1, 3
Alternative causes for symptoms must be ruled out 1, 2
Symptoms must have been present before age 12 years and persist for at least 6 months 4

The American Academy of Pediatrics suggests obtaining information from multiple sources including parents/guardians, teachers and other school personnel, and mental health clinicians involved in the child's care 1, 2
Use DSM-5-based rating scales to systematically collect information 1
Self-report becomes increasingly important for adolescents 5

For preschool-aged children (4-5 years), DSM-5 criteria can be appropriately applied, and hyperactive symptoms often are more prominent than inattentive symptoms 1, 4
For school-aged children (6-12 years), full DSM-5 criteria apply 1, 2
For adolescents (12-18 years), self-report becomes increasingly important, and assess for substance use as a complicating factor 5

It is essential to screen for common comorbid conditions that may alter treatment approach, including emotional/behavioral conditions, developmental conditions, and physical conditions 5, 6

Referral to specialists is recommended when primary care clinicians are uncertain about diagnosis or continuing with treatment, for complex cases with multiple comorbidities, or when standard treatments are ineffective 7