How Much Does An ADHD Private Diagnosis Cost in the UK? The NHS is overflowing with people who want to be diagnosed with ADHD and the waiting times are long. Some private health insurance companies will cover the cost for an assessment. It is difficult to determine the exact amount https://telegra.ph/20-Things-You-Need-To-Be-Educated-About-Private-Assessments-For-ADHD-06-06