001	ISA_LOOP - Interchange Control Header
020 GS_LOOP - Functional Group Header 020 ST_LOOP - Transaction Set Header 010 HEADER - Table 1 - Header 010 1000 - Code List 010 1100 - Code List Source 020 DETAIL - Table 2 - Detail 010 2000 - Code List Header 010 2100 - Code List Value and Definition 030 FOOTER - Table 3 - Footer