ADHD Private Assessment - Getting an Accurate Diagnosis A psychiatrist or nurse specialist must conduct a private assessment to diagnose ADHD. Only healthcare professionals with this expertise can diagnose ADHD in the UK. They will look for ADHD symptoms and mental health issues from childhood as well as school reports. https://finneaqhw.mdkblog.com/34931245/5-adhd-assessment-private-lessons-from-the-pros