Use the number holder’s (NH) Social Security number (SSN) to query the Modernized
Claims System (MCS) Development Worksheet (DW01) screen.
The FO code on the DW01 indicates the WSU assigned to the claim. For a list of WSU
office codes, see GN 01070.782D.
To locate the WSU address, telephone number, or email address, use the Detailed Office/Organization
Resource System (DOORS). FOs use the administrative telephone number to contact the