If you look into how the criteria is chosen its very arbitrary. And this descriptive diagnosis where you pick from list A and B is extremely bizarre from a common sense standpoint. And there is no brain imaging or genetic markers available.
> The number of criteria required for a diagnosis of ADHD has been set arbitrarily in DSM-5. No scientific justification has been presented nor method used for deciding how many criteria should be required
> For the case of ADHD specifically, this is translated to: “if an individual has attention deficit hyperactivity disorder it is because he is inattentive, disorganized and hyperactive-impulsive, and if an individual is inattentive, disorganized and hyperactive-impulsive it is because he has ADHD.
> The number of criteria required for a diagnosis of ADHD has been set arbitrarily in DSM-5. No scientific justification has been presented nor method used for deciding how many criteria should be required
> https://www.frontiersin.org/articles/10.3389/fsoc.2022.81476...
and...
> For the case of ADHD specifically, this is translated to: “if an individual has attention deficit hyperactivity disorder it is because he is inattentive, disorganized and hyperactive-impulsive, and if an individual is inattentive, disorganized and hyperactive-impulsive it is because he has ADHD.
> https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9871920/
It's important to be aware that each percentage point is hundreds of millions of dollars.