Tuesday, 14 January 2014

HL7 Data types

Data types in HL7 Message

Group Data type Code Data Type Name
ST String
TX Text Data
FT Formatted text
Numerical CQ Composite Quantity with Units
MO Money
NM Numeric
SI Sequence
SN Structured Number
ID Coded values from HL7 Look up List
IS Coded values from user defined
HD Hierarchic designator
EI Entity identifier
RP Reference pointer
PL Person location
PT Processing type
Date and Time DT Date Only
TM Time Only
TS Time Stamp
Code Values CE Coded Element
CF Coded element with formatted values
TN Telephone Number
XAD Extended Address
XPN Extended Person Name
XON Extended composite name and ID number for organizations
XTN Extended telecommunications number

Examples :
1. Example for TS Date and Time data type in MSH Segment as follows
MSH|^~\&|aaa|My CLINICAL LAB|aaa|A232|201309050000||ORU^R01||P|2.3|


Other Examples :
20040822143045 [indicates date/time of Aug. 22, 2004 2:30 PM and 45 seconds]
20040822143045-0800 [indicates date/time of Aug. 22, 2004 2:30 PM and 45 seconds PST]

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