Supplemental Date File LDS

This supplemental file contains all date fields for the LDS Standard Analytical Files (SAFs). There are separate date files for each SAF claim type.  It was produced for Calendar Year 2009. Starting in 2010, the actual MM/DD/YY dates have been incorporated into the SAFs.  Prior to 2009, the dates are shown as a quarter and year.

CY 2009

The date file was only produced for the 2009 LDS claims files.  Starting with the 2010 LDS claims files, all dates (MM/DD/YY) are contained in the file.

This file is no longer listed on the LDS order sheet but can still be requested. Researchers should email   The file will need to be listed on the DUA.

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