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Tuesday, March 5, 2024

Reference Numbers

REF Reference Numbers

Pos: 6

Max: 12

Heading - Optional

Loop: N/A

Elements: 3

User Option (Usage): Must use

To transmit identifying numbers.

Element Summary

Ref Id Element Name Req Type Min/Max Usage
REF01 128 Reference Number Qualifier
Code qualifying the Reference Number.
Code: TN
Name: Transaction Reference Number
M ID 2/2 Must use
REF02 127 Reference Number
Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier. Also see Reference Number Qualifier, (128).
C AN 1/30 Used
REF03 352 Description
A free-form description to clarify the related data elements and their content.
C AN 1/80 Used


  1. R0203 - At least one of REF02, REF03 is required
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