ADHD Diagnosis An ADHD diagnosis can help a person to understand the reasons why they have difficulty with certain tasks and activities. It can also boost self-esteem and assist those with ADHD in determining effective treatment plans. The NHS in England offers an adult ADHD assessment for adults with ADHD. https://telegra.ph/10-Myths-Your-Boss-Is-Spreading-About-Private-ADHD-Assessment-Liverpool-Cost-Private-ADHD-Assessment-Liverpool-Cost-03-07