Code indicating the type maintenance operation

Relative position of the data element in the segment definition; it is 1 for the data element immediately following the segment ID and is incremented by 1 for each succeeding element to the end of the segment

Reference number used to locate the data element in the Data Element Dictionary

Requirement designator as specified in the standard or standards convention

A code that indicates the type of data element

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