How Much Does An ADHD Private Diagnosis Cost in the UK? The NHS is overloaded with people seeking an ADHD diagnosis and the waiting periods are lengthy. However, some private health insurance providers will pay for an assessment. The exact number of people waiting for a diagnosis is difficult to https://telegra.ph/Why-Private-ADHD-Diagnosis-UK-Can-Be-More-Dangerous-Than-You-Believed-03-07