In addition to narrative text, the following line formats may be used:
Mandatory
This field contains identification of each item dishonoured, stating the amount and reason for dishonour.
The structured format may be used for bilaterally agreed codes.
Any code must be between slashes and must appear at the beginning of a line.
Narrative text must not begin with a slash and, if used, must begin on a new line and be the last information in the field.