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HL7 Standards - Section 1d: Version 2 (V2)

HL7's Version 2.x (V2) Messaging standard - an Application Protocol for Electronic Data Exchange in Healthcare Environments

Click a Standard to link to more detail.

Name Description Type
German Message Profiles for HL7 Version 2.5 (in German)

German Message Profiles for HL7 Version 2.5 (in German)

HL7 Messaging Standard Version 1 (Historical Reference, 1987)
  • This document is for HISTORICAL PURPOSES ONLY
  • This document was never a published standard
  • There are no/should not be any claims of conformance to V1
Not Published
HL7 Messaging Standard Version 2.2 Normative
HL7 Messaging Standard Version 2.3 Normative
HL7 Messaging Standard Version 2.3.1 Normative
HL7 Messaging Standard Version 2.4 Normative
HL7 Messaging Standard Version 2.5 Normative
HL7 Messaging Standard Version 2.5.1

Additional information on the V2 Sexual Orientation and Gender Identity (SOGI) Data Exchange Profile at http://www.hl7.org/permalink/?SOGIGuidance.

Normative
HL7 Messaging Standard Version 2.6 Normative
HL7 Messaging Standard Version 2.7

HL7’s Version 2.x (V2) messaging standard is the workhorse of electronic data exchange in the clinical domain and arguably the most widely implemented standard for healthcare in the world. This messaging standard allows the excha...

Normative
HL7 Messaging Standard Version 2.7.1

V2.7.1 provides select updates to Chapters 2B, 2C, 4, and 7 to support the Laboratory Results and Orders Interface implementation guides for Meaningful Use Stage 2 and 3 in the USA.

Normative
HL7 Messaging Standard Version 2.8

HL7’s Version 2.x (V2) messaging standard is the workhorse of electronic data exchange in the clinical domain and arguably the most widely implemented standard for healthcare in the world. This messaging standard allows the excha...

Normative
HL7 Messaging Standard Version 2.8.1

V2.8.1 contains a number of updates to support the V2 Laboratory implementation guides that are intended to be referenced by ONC’s certification program editions.

Normative
HL7 Messaging Standard Version 2.8.2

HL7 Version 2.8.2 represents HL7’s latest development efforts to the line of Version 2 Standards that date back to 1989. HL7 Version 2.8.2 is deemed necessary to support: 

Normative
HL7 Messaging Standard Version 2.9

HL7’s Version 2.x (V2) messaging standard is the workhorse of electronic data exchange in the clinical domain and arguably the most widely implemented standard for healthcare in the world. This messaging standard allows the excha...

Normative
HL7 V2 Implementation Guide Quality Criteria, Release 1

This publication defines clear quality criteria for HL7 Version 2 implementation guides. These criteria are applied by the implementation guide authors and the appropriate HL7 committees as HL7 v2 implementation guides move through the stand...

Informative
HL7 V2.2 Implementation Guide

This document provides assistance to healthcare institutions, hospital information systems vendors, consultants and other support groups that are considering systems development and implementation activities in a multi-system envir...

Informative
HL7 V2.3 Implementation Guide

This document provides assistance to healthcare institutions, hospital information systems vendors, consultants, and other support groups that are considering systems development and implementation activities in a multi-system envir...

Informative
HL7 V2.3.1 Implementation Guide

This document provides assistance to healthcare institutions, hospital information systems vendors, consultants, and other support groups that are considering systems development and implementation activities in a multi-system envir...

Informative
HL7 Version 2 Conformance Methodology Release 1

HL7 Version 2 Conformance Methodology explains the procedures and processes for constraining HL7 v2 message specifications, encompassing both message profiles and implementation guides that contain message profi...

Normative
HL7 Version 2 Implementation Guide: Clinical Genomics; fully LOINC-Qualified Cytogenetic Model, Release 1 - US Realm

The HL7 Version 2 Implementation Guide: Clinical Genomics; fully LOINC-Qualified Cytogenetic Model, Release 1 - US Realm details structuring cytogenetics test results into the electronic health record utilizing HL7 version 2.5.1...

HL7 Version 2 Implementation Guide: Clinical Genomics; Fully LOINC-Qualified Genetic Variation Model (US Realm)

This Implementation Guide details structuring genetic test results into the electronic health record or systems for translational medicine, utilizing HL7 version 2.5.1. Data structure enables clinical decision suppo...

Informative
HL7 Version 2 Implementation Guide: Laboratory Test Compendium Framework, Release 1

The Version 2 Implementation Guide: Laboratory Test Compendium Framework, Release 1 is a master file framework Implementation Guide (IG) for the electronic delivery of a laboratory’s Directory of Service (eDOS) to all p...

Informative
HL7 Version 2 Implementation Guide: Laboratory Value Set Companion Guide, Release 2 - US Realm

HL7 has developed multiple Implementation Guides (IGs) for the laboratory domain, supporting US Realm requirements.  These IGs cover a broad spectrum of interoperability; in order to harmonize vocabulary requirements across the IGs, HL7 O...

DSTU, STU
HL7 Version 2 Product Suite

Become an HL7 V2 certified control specialist today!

...
Informative, Normative
HL7 Version 2.3.1 Messaging Addenda

This addendum is provided to add clarity to implementations of the HL7 version 2.3.1 messaging standard which choose to follow guidelines for implementing the standard with an XML encoding.  This addendum does not affect imple...

HL7 Version 2.3.1 Messaging Schemas

The HL7 Version 2 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.4 Messaging Addenda

This addendum is provided to add clarity to implementations of the HL7 version 2.4 messaging standard which choose to follow guidelines for implementing the standard with an XML encoding.  This addendum does not affect imple...

HL7 Version 2.4 Messaging Schemas

The HL7 Version 2.4 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.4 Specification Errata

Technical corrections to HL7 Version 2.4 Messaging Standard.

HL7 Version 2.4 Specification Technical Correction: P03 and P11 Trigger Events

HL7 Version 2.4 Specification Technical Correction: P03 and P11 Trigger Events were corrected for the DFT message to distinguish P03 segments global across all FT1 segments and details the new P11 triggers and their associated messa...

HL7 Version 2.4 Specification Technical Correction: P03 Updates

V2.4 - P03 Post Detail Financial Transaction Implementation Suggestion provides FT1 specific charge update segments vs. the global update segments for the DG1, DRG, GT1 and IN1 segments.

HL7 Version 2.5 Messaging Schemas

The HL7 V2.5 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itsel...

HL7 Version 2.5.1 Implementation Guide: Electronic Laboratory Reporting to Public Health, Release 1 (US Realm)

This product page contains the Release 1 Informative Standard of HL7 Version 2.5.1 Implementation Guide: Electronic Laboratory Reporting to Public Health.   If you are seeking the Release 2 Draft Standard for Trial Use o...

Informative
HL7 Version 2.5.1 Implementation Guide: Height and Weight Report, Release 1 (US Realm) [HL7 Version 2.5.1: ORU^R01]

This document describes profile constraints on the HL7 V2.5.1 ORU^R01 Unsolicited Observation Message to meet the requirements of the transmission of height and weight data for calculating a patient’s body mass index (BMI)...

Informative
HL7 Version 2.5.1 Implementation Guide: Laboratory Orders (LOI) from EHR, Release 1, STU Release 4 - US Realm

The Laboratory Orders Interface Initiative focuses on identifying the requirements, specifications and standards, and on providing the implementation guidance for electronic ordering of laboratory tests in the US Realm. The scope of the Labor...

DSTU, STU
HL7 Version 2.5.1 Implementation Guide: Laboratory Results Interface, Release 1 STU Release 4 - US Realm

This guide provides guidance on how to communicate laboratory results in general from a (reference) Laboratory’s LIS to a system interested in lab results, e.g., EHR, Public Health, other Laboratory. It covers general lab resul...

STU
HL7 Version 2.5.1 Implementation Guide: Orders and Observations; Ambulatory Lab Result (ELINCS), Release 1

This HL7 Version 2.5.1 Ambulatory Care Laboratory Result (ELINCS) Implementation Guide provides guidance on how to apply the HL7 Version 2.5.1 standard for the electronic reporting of laboratory test results to electronic health recor...

Informative
HL7 Version 2.5.1 Implementation Guide: Orders and Observations; Interoperable Laboratory Result Reporting to EHR, Release 1

The Version 2.5.1 Implementation Guide; Orders and Observations; Interoperable Laboratory Result Reporting to EHR (US Realm), Release 1 provides guidance on how to apply the Version 2.5.1 standard to the exchange of laboratory resul...

Informative
HL7 Version 2.5.1 Implementation Guide: S&I Framework Laboratory Test Compendium Framework (eDOS), Release 2 - US Realm

The content of the Laboratory Test Compendium Framework is a Laboratory’s DOS. The content is owned by the sending laboratory for the purpose of being used by the compendium consumer to be able to order laboratory services and t...

DSTU, STU
HL7 Version 2.5.1 Implementation Guide: Syndromic Surveillance, Release 1 - US Realm

This guide provides:

  • An HL7 implementation and content reference standard for facilitating syndromic surveillance electronic health record technology certification
  • A...
STU
HL7 Version 2.5.1 Messaging Schemas

The schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part of this specification. While HL7 publishes schem...

HL7 Version 2.6 Implementation Guide: Blood Bank Donation Services (US Realm), Release 1

The HL7 Blood Bank Donation Services Implementation Guide – U.S. Realm is a messaging specification intended to standardize the electronic transmission of information between system application components in a Blood Bank setti...

Informative
HL7 Version 2.6 Implementation Guide: Early Hearing Detection and Intervention (EHDI) Results Release 1

Early Hearing Detection and Intervention (EHDI) programs exist world-wide to help identify children with hearing loss. Because newborn hearing loss is a neuro-developmental emergency, children with hearing loss need to be identified short...

DSTU, Normative
HL7 Version 2.6 Implementation Guide: Newborn Screening for Critical Congenital Heart Defects (CCHD), Release 1

Many seemingly healthy babies with Critical Congenital Heart Disease (CCHD) may suffer negative health outcomes if the birth defect is not identified shortly after birth. International efforts have precipitated both program and legis...

Normative
HL7 Version 2.6 Implementation Guide: Vital Records Birth and Fetal Death Reporting, Release 1 STU Release 2 - US Realm

This document provides a technical messaging specification for transmitting birth and fetal death related information using the HL7 Version 2.6 ADT Update Patient Information. The reporting requ...

STU
HL7 Version 2.6 Implementation Guide: Vital Records Death Reporting, Release 1 STU 2 - US Realm

This document provides a technical messaging specification for transmitting death related information using the HL7 Version 2.6 ADT Update Patient Information. The reporting requirements are consistent with the 2003 Revision of the Unite...

STU
HL7 Version 2.6 Messaging Schemas

The HL7 Version 2.6 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.7 Messaging Schemas

The HL7 Version 2.7 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.7.1 Implementation Guide: Message Transformations with OASIS Tracking of Emergency Patients (TEP), Release 1

The scope of this project was to write a specification that can be used to develop transforms of the OASIS Emergency Data eXchange Language (EDXL) TEP 1.1 data that properly map to the appropriate HL7 v2.7.1 messages used in the healt...

Informative
HL7 Version 2.7.1 Messaging Schemas

The HL7 Version 2.7.1 XML Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.8 Messaging Schemas

The HL7 Version 2.8 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.8.1 Messaging Errata
HL7 Version 2.8.1 Messaging Schemas

The HL7 Version 2.8.1 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.8.2 Implementation Guide: Immunization Messaging, Release 1 - US Realm

This document is a US Realm implementation guide for immunization messaging. The document covers both submission of vaccination events and patient demographics as well as bi-directional query and response. This document is suitable for u...

STU
HL7 Version 2.8.2 Messaging Schemas

The HL7 Version 2.8.2 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

HL7 Version 2.9 Messaging Schemas

The HL7 Version 2.9 v2.xml Message Definition schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part ...

Not Published
HL7 Version 2.x Message Profiling Specification

The HL7 V2.x Message Profiling informative document (2000) provides a guideline for documenting particular uses of HL7 messages. A defined V2.x message profile will be registered with HL7 and may be reused by other HL7 users, movin...

Informative
HL7 Version 2.x Messaging Schemas

The schema representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML representation. However the schema is not in itself a normative part of this specification. While HL7 publishes schem...

HL7 Version 2.x XML Example Messages

v2.xml Example Messages

HL7-NCPDP Electronic Prescribing Coordination Mapping Document, Release 1

The Version 2 NCPDP Electronic Prescribing Coordination Mapping Implementation Guide provides mapping requirements for electronic prescribing systems using HL7 Versions 2.4 and later. It specifies functional electronic prescribing commu...

Informative
HL7/OASIS Cross Paradigm Implementation Guide: Emergency Data Exchange Language (EDXL) Hospital AVailability Exchange (HAVE) Version 2.0 (EDXL-HAVE), Release 1

EDXL-HAVE (HAVE) is an XML messaging standard primarily for exchange of information related to health facilities in the context of emergency management. HAVE supports sharing information about facility services, bed counts, opera...

Informative
Secure HL7 Transactions using Internet mail, Rev 1.7

This document is a non-balloted HL7 Recommendation that describes how to send HL7 messages using public Internet mail.

Standard Guide for Implementing HL7 EDIT Communication Security

This non-balloted Standard Guide gives the framework for secure end-to-end communication of EDI messages focusing on HL7. It is based on the common security model that distinguishes the concepts of communication security as rather globa...

Informative
V2.2 Implementation Support Guide

This document provides assistance to healthcare institutions, hospital information systems vendors, consultants and other support groups that are considering systems development and implementation activities in a multi-system envir...

V2.3 Implementation Support Guide

This document provides assistance to healthcare institutions, hospital information systems vendors, consultants, and other support groups that are considering systems development and implementation activities in a multi-system envir...

V251 Implementation Guide: Electronic Laboratory Reporting to Public Health (US Realm), Release 1 Errata

Please note that two separate errata documents are included in the V251 Implementation Guide: Electronic Laboratory Reporting to Public Health, Release 1 download package as of 24 July 2013.  The first errate was release in Octob...

Version 2 Implementation Guide: Implementing the Virtual Medical Record for Clinical Decision Support (vMR-CDS), Release 1

This standard specifies methods of encoding rich data in HL7 V2 messages, to enable a virtual medical record for clinical decision support (vMR-CDS) to be built out of HL7 V2 data.

DSTU
Version 2 v2.xml XML Schemas for HL7 Version 2.5 and earlier

Version 2 v2.xml XML Schemas for HL7 Version 2.5 and earlier were contributed by Sun Microsystems. These representations are provided for convenience, as the XML schema is a compact and specific way to describe the XML repre...

Version 2.1 Access Database
Version 2.2 Access Database
Version 2.2 Access Database Upgrade
Version 2.3 Access Database
Version 2.3 Access Database Upgrade
Version 2.3.1 Access Database
Version 2.3.1 Access Database Upgrade
Version 2.4 Access Database
Version 2.4 Access Database Upgrade
Version 2.5/2.5.1 Access Database
Version 2.5/2.5.1 Access Database Upgrade
Version 2.6 Access Database
Version 2.6 Access Database Upgrade
Version 2.7/2.7.1 Access Database
Version 2.7/2.7.1 Access Database Upgrade
Version 2.8.2 Access Database
Version 2.8/2.8.1 Access Database
Version 2.8/2.8.1 Access Database Upgrade
Version 2.x Common Audit Message

This is an informative document that proposes privacy and security policy relevant data to be exchanged among application systems via an audit message. It is meant to supplement existing system-specific security audits with healthcare appli...

Informative
XML Encoding Rules for Version 2 Messages, Release 2 (HL7 Version 2: XML Encoding Syntax, Release 2)

The objective of this document is to present alternate encoding rules for HL7 Version 2.3.1 to 2.7 messages (and a mechanism for determining alternate encoding rules for subsequent HL7 2.x versions) based on the Extensible Markup Language XML t...

Normative
XML Encoding RulesĀ  (HL7 Version 2: XML Encoding Syntax, Release 1)

This document describes how to use  XML for Version 2.x (V2) messages. Even with the release of HL7 Version 3 (V3), HL7 V2.xml is needed to support the large base of existing systems that employ V2. This document does not repla...

Normative