This field contains the code of the infocode that is linked to the subcode. When the subcode is selected, the program will display the next linked infocode.
Note - A subcode cannot have a linked infocode if the header infocode has a linked infocode.
If the header infocode is a group, its selection subcodes cannot have a linked infocode.
If multiple selection is allowed for the header infocode, and two subcodes are selected, both with a linked infocode,
only the first linked infocode will be processed.