To report implementation errors in a data segment and identify the location of the data segment
Code defining the segment ID of the data segment in error (See Appendix A - Number 77)
The numerical count position of this data segment from the start of the transaction set: the transaction set header is count position 1
The loop ID number given on the transaction set diagram is the value for this data element in segments LS and LE
Code indicating implementation error found based on the syntax editing of a segment
