ADHD Diagnosis - Getting the Right One From the NHS In order for people to receive an accurate diagnosis for ADHD the NHS requires a thorough evaluation. The BBC investigation found that certain private clinics could provide inaccurate diagnoses and prescriptions. A valid diagnosis for ADHD is based on the https://telegra.ph/Dont-Make-This-Silly-Mistake-Youre-Using-Your-ADHD-Private-Diagnosis-London-03-07