I am filling my dependent’s information and they ask if he was disabled. We did receive an Autism diagnosis 12/20/2022. Does/should that qualify?

[DoninGA]

This is the IRS definition of permanently and totally disabled -

Permanently and totally disabled. Your child is permanently and totally disabled if both of the following apply.
• Your child can't engage in any substantial gainful activity because of a physical or mental condition.
• A doctor determines the condition has lasted or can be expected to last continuously for at least a year or can lead to death.

If the child is under the age 19 indicating they are disabled has no affect on your tax return as your dependent.

[MarilynG1]

How old is your child?  If under 13, there is no tax benefit for disability.  If over 13, and child care is required, you can claim care expenses for a disabled dependent.

Click this link for more info on child disability.