ADHD in adults

In this chapter, the diagnostic assessment of ADHD in adults is described, starting with the clinical picture, such as the symptoms and the areas of impairment. To start the diagnostic process, screening instruments may be used. During diagnostic assessment, collateral information and neuropsychological tests have their role. The assessment of frequently occurring comorbidity with other psychiatric disorders, such as mood, anxiety, sleep, personality, and autism spectrum disorders, as well as addiction, is necessary to complete the clinical picture. Also, differential diagnosis is part of the diagnostic process. Finally, the Diagnostic Interview for ADHD in adults (DIVA 2.0), and the Conners Adult ADHD Diagnostic Interview (CAADID) are described and discussed. Instructions for use of the DIVA are given. The adjustments in the DSM-5 criteria for ADHD, and the next edition of DIVA based on the DSM-5 criteria, DIVA-5, are described.