Identifying SSA's Sequential Disability Determination Steps Using Administrative Data

The authors document the steps used by the Social Security Administration (SSA) and state Disability Determination Service (DDS) agencies to make initial determinations about eligibility for Disability Insurance and Supplemental Security Income. For both adults and children, SSA/ DDSs record the basis for initial disability determinations using codes that correspond to the steps of the process. The resulting data element, the Regulation Basis Code, permits researchers to distinguish allowances based on the listings from those based on medical/vocational factors for adults (or functional factors for children). It can also be used to identify denials based on severity, residual functional capacity, or other reasons