Although there are no specific physical examination or laboratory findings associated with ADHD, signs can include Motor incoordination or clumsiness Nonlocalized, "soft" neurologic findings Perceptual-motor dysfunctions Diagnosis of ADHD Clinical criteria based on the DSM-5 Diagnosis of ADHD is clinical and is based on comprehensive medical, developmental, educational, and psychologic evaluations (see also the American Academy of Pediatrics' 2019 clinical practice guideline for the diagnosis, evaluation, and treatment of attention-deficit / hyperactivity disorder in children and adolescents).