Supplemental Security Income Mental Disability Determinations Reform Act of 1983

Supplemental Security Income Mental Disability Determinations Reform Act of 1983 - Directs the Secretary of Health and Human Services to revise the criteria under the category "Mental Disorders" in the "Listing of Impairments" in the Code of Federal Regulations, to the extent such criteria are applicable to individuals seeking or receiving benefits based on disability under the Supplemental Security Income program (title XVI of the Social Security Act). Directs the Secretary to also revise the methods of procedures used under such program for assessing the residual functional capacity of individuals having mental impairments. Requires the revised listings and residual functional capacity assessments to be designed to realistically evaluate the ability of a mentally impaired individual to engage in substantial gainful activity in a competitive workplace environment. Directs the Secretary to appoint a panel of outside experts to make recommendations with respect to such revisions. Prohibits continuing eligibility reviews with respect to mental impairment until the revisions are completed.

Requires, under title XVI, that in any case in which an individual claims to be under a disability by reason of a mental impairment, the determination shall be made only after the Secretary has demonstrated that a qualified psychiatrist or psychologist has completed the medical portion of the sequential evaluation and residual functional capacity assessment.

Prohibits the authorization of appropriations for SSI periodic eligibility reviews for individuals whose claims to disability benefits are based on mental impairment, except to the extent that such funds are specifically authorized for such reviews.

Makes permanent provisions of title XVI which provide SSI benefits for individuals who perform substantial gainful activity despite a severe medical impairment.

Makes permanent provisions which provide for the continued payment of SSI or disability benefits (title II of such Act) during appeal of a disability determination.

Directs the Secretary to: (1) provide assistance to disabled individuals in complying with requirements and procedures under titles II and XVI; and (2) assure that disabled individuals eligible for or receiving benefits under title II are informed of available SSI benefits.

Requires hearings and proceedings related to a disabled individual under the SSI program to be held at an accessible location.