ASC/X12 Reference
I12 - Interchange Control Number

On this topic:

• Technical Notes
• Standards Information

Technical Notes

1. The I12 data element specifies a unique number to the interchange.

Standard Information

NOTE: This information is referenced from ASC/X12 and may not be current.  For the latest information please visit the ASC/X12 web site.

A control number assigned by the interchange sender.