Data Elements

434 data elements in HL7 v2.1

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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.

00002

ACKNOWLEDGMENT CODE

ID0008MSA-1

00003

MESSAGE CONTROL ID

STMSA-2

00004

TEXT MESSAGE

STMSA-3

00005

FIELD SEPARATOR

STMSH-1

00006

SENDING APPLICATION

STMSH-3

00008

Security

STMSH-8

00009

RECEIVING APPLICATION

STMSH-5

00010

DATE/TIME OF MESSAGE

TSMSH-7

00012

MESSAGE TYPE

ID0076MSH-9

00013

MESSAGE CONTROL ID

STMSH-10

00014

PROCESSING ID

ID0103MSH-11

00015

VERSION ID

NM0104MSH-12

00020

PATIENT ADDRESS

ADPID-11

00026

COUNTY CODE

IDPID-12

00029

EVENT TYPE CODE

ID0003EVN-1

00030

DATE/TIME OF EVENT

TSEVN-2