ST

Transaction Set Header

Pos: 010	Max: 1
Heading - Mandatory
Loop: N/A	Elements: 2

Ref

Id

Element Name

Req

Type

Min/Max

Usage

ST01

143

Transaction Set Identifier Code
Description: Code uniquely identifying a Transaction Set
Use this code to identify the transaction set ID for the transaction set that will follow the ST segment. Each X12 standard has a transaction set identifier code that is unique to that transaction set.

M

ID

3/3

Required

Code

Name

270

Eligibility, Coverage or Benefit Inquiry

ST02

329

Transaction Set Control Number
Description: Identifying control number that must be unique within the transaction set functional group assigned by the originator for a transaction set
The transaction set control numbers in ST02 and SE02 must be identical. This unique number also aids in error resolution research. Start with the number, for example “0001", and increment from there. This number must be unique within a specific group and interchange, but can repeat in other groups and interchanges.

M

AN

4/9

Required

1.

The transaction set identifier (ST01) used by the translation routines of the interchange partners to select the appropriate transaction set definition (e.g., 810 selects the Invoice Transaction Set).

Notes:

1. Use this control segment to mark the start of a transaction set. One ST segment exists for every transaction set that occurs within a functional group.

Example:

ST*270*0001~