Yes. But for medical purposes diagnosis is usually done by a doctor who can apply some reasoning to the process. They use the DSM, but they do not just tick boxes.

Compared to the ATOS (the independent assessors) who are real doctors but who are forced to operate to a very strict, limited, set of tick boxes. That kind of works for some physical disorders.

"On my bad days I cannot stand for more than 30 minutes"; "On my bad days I cannot walk unaided more than 10 metres".

Thus, real doctors are not allowed to use their subjective experienced judgement.