ISA Interchange Control Header

To start and identify an interchange of zero or more functional groups and interchange-related control segments

Position: ISA-01 · Element: I01 · Name: Authorization Information Qualifier · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Code to identify the type of information in the Authorization Information

Position: ISA-02 · Element: I02 · Name: Authorization Information · Type: String (AN) · Requirement: Mandatory · Min: 10 · Max: 10 · Repeat: -

Information used for additional identification or authorization of the interchange sender or the data in the interchange; the type of information is set by the Authorization Information Qualifier (I01)

Position: ISA-03 · Element: I03 · Name: Security Information Qualifier · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Code to identify the type of information in the Security Information

Position: ISA-04 · Element: I04 · Name: Security Information · Type: String (AN) · Requirement: Mandatory · Min: 10 · Max: 10 · Repeat: -

This is used for identifying the security information about the interchange sender or the data in the interchange; the type of information is set by the Security Information Qualifier (I03)

Position: ISA-05 · Element: I05 · Name: Interchange ID Qualifier · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Qualifier to designate the system/method of code structure used to designate the sender or receiver ID element being qualified

Position: ISA-06 · Element: I06 · Name: Interchange Sender ID · Type: String (AN) · Requirement: Mandatory · Min: 15 · Max: 15 · Repeat: -

Identification code published by the sender for other parties to use as the receiver ID to route data to them; the sender always codes this value in the sender ID element

Position: ISA-07 · Element: I05 · Name: Interchange ID Qualifier · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Qualifier to designate the system/method of code structure used to designate the sender or receiver ID element being qualified

Position: ISA-08 · Element: I07 · Name: Interchange Receiver ID · Type: String (AN) · Requirement: Mandatory · Min: 15 · Max: 15 · Repeat: -

Identification code published by the receiver of the data; When sending, it is used by the sender as their sending ID, thus other parties sending to them will use this as a receiving ID to route data to them

Position: ISA-09 · Element: I08 · Name: Interchange Date · Type: Date (DT) · Requirement: Mandatory · Min: 6 · Max: 6 · Repeat: -

Date of the interchange

Position: ISA-10 · Element: I09 · Name: Interchange Time · Type: Time (TM) · Requirement: Mandatory · Min: 4 · Max: 4 · Repeat: -

Time of the interchange

Position: ISA-11 · Element: I10 · Name: Interchange Control Standards Identifier · Type: Identifier (ID) · Requirement: Mandatory · Min: 1 · Max: 1 · Repeat: -

Code to identify the agency responsible for the control standard used by the message that is enclosed by the interchange header and trailer

Position: ISA-12 · Element: I11 · Name: Interchange Control Version Number · Type: Identifier (ID) · Requirement: Mandatory · Min: 5 · Max: 5 · Repeat: -

This version number covers the interchange control segments

Position: ISA-13 · Element: I12 · Name: Interchange Control Number · Type: Numeric (N0) · Requirement: Mandatory · Min: 9 · Max: 9 · Repeat: -

A control number assigned by the interchange sender

Position: ISA-14 · Element: I13 · Name: Acknowledgment Requested · Type: Identifier (ID) · Requirement: Mandatory · Min: 1 · Max: 1 · Repeat: -

Code sent by the sender to request an interchange acknowledgment (TA1)

Position: ISA-15 · Element: I14 · Name: Usage Indicator · Type: Identifier (ID) · Requirement: Mandatory · Min: 1 · Max: 1 · Repeat: -

Code to indicate whether data enclosed by this interchange envelope is test, production or information

Position: ISA-16 · Element: I15 · Name: Component Element Separator · Requirement: Mandatory · Min: 1 · Max: 1 · Repeat: -

Type is not applicable; the component element separator is a delimiter and not a data element; this field provides the delimiter used to separate component data elements within a composite data structure; this value must be different than the data element separator and the segment terminator