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 long. Some private health insurance companies will cover the cost of an assessment. The exact number of people waiting for a diagnosis is hard https://claytonfifwa.blogzet.com/10-facts-about-adhd-diagnosis-private-uk-that-will-instantly-set-you-in-a-positive-mood-44541244