ADHD Diagnosis - Getting the Right One From the NHS The NHS requires that people undergo a thorough evaluation in order to receive an accurate ADHD diagnosis. The BBC investigation found that some private clinics may be giving inaccurate diagnoses and prescribing inappropriate medications. A valid diagnosis for ADHD is https://telegra.ph/Is-ADHD-Assessment-UK-Private-The-Most-Effective-Thing-That-Ever-Was-04-08