Code indicating the type maintenance operation

The level of the control segment in the interchange order table of the electronic form

Code defining the segment ID of the data segment in error (See Appendix A - Number 77)

Envelope indicator for the control segments in the interchange order table of the electronic form

Requirement designator as specified in the standard or standards convention

Number of times a data segment may appear; the use of 9999999 in the electronic form is to be interpreted to mean >1

A number providing a reference to a segment or file which contains notes or comments related to X12 standards documentation