2062665-001 G 29 
HL7 Data Segment Definitions: Introduction
X Not used with this trigger event.
Data Types Description
CE Coded element
SN Structured numeric
CK Composite ID w/check digit
ST String
CQ Composite quantity w/units
TQ Timing quantity
CX Extended composite ID w/check digit
TS Time stamp
DLN Driver's license number
TX Text data
DT Date
XAD Extended composite ID number
HD Hierarchic designator name for persons
ID Coded value
XON Extended composite name and ID
IS Sequence ID number for organizations
NM Numeric
XPN Extended person name
PT Processing type
XTN Extended telecommunications number
SI Sequence ID
* Indication that the data type for the value of an HL7 
field can be of any type
Abbreviations Description