Annually, millions of Americans seek Social Security disability income (or SSDI) to help cover everyday living expenses, medical costs, and other financial obligations. To qualify for SSDI, an applicant must satisfy various requirements and submit proof of meeting them. One requirement is that the applicant has a preexisting condition that prevents him or her from working for at least one year. Mental and psychological disorders are one such condition that satisfies this requirement. The Social Security Administration (SSA) recognizes eleven types of mental disorders.