To indicate the start of a transaction set and to assign a control number
20
E01
Electronic Form Main Heading
To provide the information related to all of the values for this instance of the electronic form of the X12 standards
30
DMI
Data Maintenance Information
To provide information related to the data maintenance request number in the electronic form of the X12 standards
40
E03
Interchange Order of Segments
To provide information related to the interchange order table of the control segments for the electronic form of the X12 standards
To provide a free-form format that allows the transmission of text information
To provide information grouping of transaction sets by transaction ID and functional ID for the electronic form of the X12 standards
55
E13
Segment Order in Transaction Set
To provide the list of segments in a transaction set for the electronic form of the X12 standards
80
E20
Segment Header Information
To provide for grouping the data elements by segment ID value for the electronic form of the X12 standards
90
E22
Data Element Relationships in a Segment
To provide the detail information for the data element relationships in a segment for the electronic form of the X12 standards
100
E24
Data Element Sequence in a Segment
To provide the detail information related to the sequence of the data elements in a segment for the electronic form of the X12 standards
110
E26
Element Sequence in Composite
To provide the detail information related to the sequence of the subelements in a composite data element (segment) for the electronic form of the X12 standards
To provide the data element attributes for the electronic form of the X12 standards
To provide appendix information for the electronic form of the X12 standards
To specify quantity information
140
E34
Code List Values for a Data Element
To provide the code list values of a data element for the electronic form of the X12 standards
To provide description information related to the electronic form of the X12 standards
To provide appendix information for the electronic form of the X12 standards
170
E40
EDI Standards Note Reference
To transmit information relative to comments and notes within the X12 standards
180
DMI
Data Maintenance Information
To provide information related to the data maintenance request number in the electronic form of the X12 standards
To provide description information related to the electronic form of the X12 standards
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)