Code indicating the type maintenance operation

Loop repeat count as specified in the standard; the use of 9999999 in the electronic form is to be interpreted to mean >1

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