How Much Does a Private ADHD Diagnosis Cost? If you are an adult with ADHD, you may need to take the private route to get diagnosed. This is a great option, as many private psychiatrists are experienced in diagnosing ADHD in adults. They also test them for co-morbidities like anxiety https://emiliomuafm.onesmablog.com/watch-out-how-adhd-diagnosis-private-uk-is-taking-over-and-how-to-stop-it-70239086