Medical Conference Tax Deduction Is severe ADHD a chronic illness in the eyes of the IRS?

I see that medical conferences (Cost of entry to the conference and transportation to the conference) for chronic illnesses can be deductible if one is itemizing deductions. Is severe ADHD a chronic illness in the eyes of the IRS?

 

I attended the international conference on ADHD in which many doctors, psychiatrists and psychologists spoke about various treatments for the condition. With this qualify as a medical deduction?