Does a child diagnosed with Autism qualify as disabled on your federal tax returns?

[Bsch4477]

Disability for a child doesn’t affect your return since the definition refers to the ability to work. 

[DoninGA]

If the child is under the age of 19 checking the disabled box will have no effect on your tax return. 

IRS definition of disabled -

A person is permanently and totally disabled if, at any time in 2021, the person can't engage in any substantial gainful activity because of a physical or mental condition and a doctor has determined that this condition

has lasted or can be expected to last continuously for at least a year or can be expected to lead to death.