What is US treasury 310 EDI Misc?

According to fms.treas.gov/greenbook/pdf/GreenbookComplete.pdf, the breakdown is that '310' means Kansas City, MO Customer Svc. (tel. 816-414-2100). EDI Misc means that it's a CTX payment, also known as a Corporate Trade Exchange payment. The numbers following appear to be the remittance information (e.g., invoice number, discount terms) as determined by the Federal agency and the vendor.