ADHD Diagnosis - Getting the Right One From the NHS The NHS requires that people undergo a thorough assessment in order to get a proper ADHD diagnosis. The BBC investigation revealed that some private clinics could be giving inaccurate diagnoses and prescribing inappropriate medication. A valid ADHD diagnosis is based http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1371866