HL7 resources

HL7 EVN Segment

The EVN segment is used to communicate trigger event information to receiving applications.

EVN Attributes

The fields in the PID segment are as follows:

13IDB Event Type Code
226TSR Recorded Date/Time
326TSO Date/Time Planned Event
43ISO Event Reason Code
560XCNOYOperator ID
626TSO Event Occurred

*Note: For the complete HL7 Standard, please go to the HL7 organization website.

In HL7 pipe and hat format, the PID segment (shown in red) for an ADT-A01 message would look like this:



PID|||PATID1234^5^M11||JONES^WILLIAM^A^III||19610615|M-||C|1200 N ELM





AL1|1||^Penicillin||Produces hives

AL1|2||^Cat dander|Respiratory distress

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