Adoption of a prior determination by the Disability Determinations Services (DDS)
through the collateral estoppel process required the inclusion of the regulation basis
code of that original determination on the adoption Form SSA-831-U3 (Disability Determination
If no regulation basis code was reflected on the query from the National Disability
Determination Services System (NDDSS) for the claim, the DDS secured the folder or
if lost, reconstructed same.
The Office of Systems Requirements (OSR) has established two new regulation basis
codes for use in the processing of initial cases under the principle of collateral
estoppel in the above situation.
Effective October 1991, the regulation basis codes of “CE” for title II and “ACE” for title XVI are now available for transmitting decisional data to the NDDSS.