You wouldn't proceed to a diagnosis of schizoid personality disorder unless the personality disorder criteria are met first. The schizoid personality disorder does not even address the disability clause (C) of the Personality Disorder-- which is the basis of Social Security disability. Most people don't realize this and look at the schizoid criteria and think yeah that's me. They miss the fact you have to be significantly outside the normal range to be schizoid-- simply introvert doesn't cut it.

Of course I maybe a bit touchy, as I find people talking about a "schizoid personality" or "schizoid style" offensive when they readily admit there's nothing wrong with themselves. I'm glad it has been drop from the DSM-V, I have a dozen other labels to bill Medicaid under.