Data Elements

1,261 data elements in HL7 v2.3

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2.2Nov1994

2.3Apr1997

2.3.1May1999

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Chapter 2A: Data Types:Data elements are the fundamental units of information in HL7 messages. Each element has a unique identifier, data type, and optionality. They represent specific clinical or administrative concepts and can appear in multiple segment fields across the specification.

00001

Field Separator

STMSH-1

00002

Encoding Characters

STMSH-2

00003

Sending Application

HDMSH-3

00004

Sending Facility

HDMSH-4

00005

Receiving Application

HDMSH-5

00006

Receiving Facility

HDMSH-6

00007

Date / Time of Message

TSMSH-7

00008

Security

STMSH-8

00009

Message Type

CM_MSGMSH-9

00010

Message Control ID

ST2 segments

00011

Processing ID

PTMSH-11

00012

Version ID

ID0104MSH-12

00013

Sequence Number

NMMSH-13

00014

Continuation Pointer

ST2 segments

00015

Accept Acknowledgement Type

ID0155MSH-15

00016

Application Acknowledgement Type

ID0155MSH-16