How Much Does a Private ADHD Diagnosis Cost? You may need to go the private route if you are an adult suffering from ADHD. This is a viable option as private psychiatrists are more experienced in diagnosing adults suffering from ADHD. They will also check them for co-morbidities like depression https://privateadhdassessment43940.targetblogs.com/30259698/11-faux-pas-that-are-actually-okay-to-make-with-your-adhd-diagnosis-private-uk