id	description	section	req	max_loop	max_usage	pos
BGN	Beginning Segment	H	M	0	1	1
DTM	Date/Time Reference	H	O	0	2	2
N9	Extended Reference Information	H	O	0	999999	3
TRN	Trace	H	O	0	999999	4
QTY	Quantity Information	H	O	0	10	5
AMT	Monetary Amount Information	H	O	999999	1	6
QTY	Quantity Information	H	O	0	1	7