ADHD Assessment and Diagnosis A diagnosis and assessment of ADHD can change the lives of children and teenagers. A diagnosis and a tailored treatment plan can assist them in maximizing their learning environment and reach their full potential. A diagnosis of ADHD is not always readily available on the NHS. https://petdetail90.bravejournal.net/private-adhd-assessment-wales-the-process-isnt-as-hard-as-you-think