Medication is the only covered treatment for ADHD because it's the only legitimate treatment for it, as far as science is concerned. There have been some promising treatments, but there are no peer-reviewed studies showing any of these cognitive training/neurofeedback-type treatments cure or have long-term effects on ADHD.
Having said that, ADHD is almost exclusively diagnosed via matching symptoms to a list (subjective, easily effected by bias), as opposed to brain scans (obviously expensive and rather involved.) This probably results in a lot of kids getting diagnosed that do, in fact have some sort of developmental delay in regards to executive functioning, but NOT full-blown ADHD. ADHD actually shows up quite clearly on brain scans... and I'm not sure I believe things like cognitive training or neurofeed back can alter the brain the way they claim in a few short weeks/months.
