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HL7 Data Segment Definitions: Data Segments
Data Segments
MSH — Message Header Segment
SEQ LEN DT REQ/OPT TABLE# ELEMENT NAME
1 1 ST R Field Separator
2 4 ST R Encoding Characters
3 227 HD R 0361 Sending Application
4 227 HD RE 0362 Sending Facility
5 227 HD RE 0361 Receiving Application
6 227 HD RE 0362 Receiving Facility
7 26 DTM R Date/Time of Message
8 40 ST RE Security
9 15 MSG R Message Type
10 20 ST R Message Control ID
11 3 PT R Processing ID
12 60 VID R Version ID
13 15 NM RE Sequence Number
14 180 ST RE Continuation Pointer
15 2 ID R 0155 Accept Acknowledgment Type
16 2 ID R 0155 Application Acknowledgment Type
17 3 ID RE 0399 Country Code
18 16 ID RE 0211 Character Set
19 250 CE RE Principal Language of Message
20 20 ID RE 0356 Alternate Character Set Handling Scheme
21 427 EI R Message Profile Identifier