How to get a diagnosis?

Hi all,

I’ve scoured this sub, and I can’t quite get the information I need in a way that I understand it.

My son is 4. I am 90% sure he has ADHD, 100% sure he is neurodivergent in some way. After trying to get others to see it for years, I’m finally making headway. He just started OT this week. We had a referral to the children’s hospital, but it didn’t take my insurance and would have been $1500. He has an appointment with child find (CO) in January, but as far as I know they don’t do diagnoses.

I just don’t know what to do next. I reached out to my insurance about where they cover testing, but I don’t know if the person understood, because they send me a bunch of places that say they are for autism support?

When I google about adhd diagnosis, I get a bunch of information about supporting a child with ADHD, but no practical information of just what steps to take to get a diagnosis.

I guess my question is just what do I do? In a really practical, concrete sense, who (what type of person/practice) do I call and what do I say that I’m looking for?