ADHD Diagnosis - Getting the Right One From the NHS The NHS requires that patients undergo a thorough assessment for an accurate ADHD diagnosis. The BBC investigation found that certain private clinics could be distributing inaccurate diagnoses and prescriptions. A valid ADHD diagnosis is based on the symptoms, their severity, https://www.medflyfish.com/index.php?action=profile;area=forumprofile;u=3831928