ADHD Diagnosis - Getting the Right One From the NHS For people to get a proper diagnosis for ADHD the NHS requires a thorough examination. The BBC investigation revealed that a few private clinics could provide inaccurate diagnoses and prescriptions. A valid diagnosis of ADHD is based on the severity, http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372167