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Health Level 7

March 23, 2023

This article is about the family of standards. For the organization that created them, see Health Level Seven International.

Health Level Seven or HL7 refers to a set of international standards for transfer of clinical and administrative data between software applications used by various healthcare providers. These standards focus on the application layer, which is "layer 7" in the OSI model. The HL7 standards are produced by Health Level Seven International, an international standards organization, and are adopted by other standards issuing bodies such as American National Standards Institute and International Organization for Standardization.

Hospitals and other healthcare provider organizations typically have many different computer systems used for everything from billing records to patient tracking. All of these systems should communicate with each other (or "interface") when they receive new information, or when they wish to retrieve information, but not all do so.

HL7 International specifies a number of flexible standards, guidelines, and methodologies by which various healthcare systems can communicate with each other. Such guidelines or data standards are a set of rules that allow information to be shared and processed in a uniform and consistent manner. These data standards are meant to allow healthcare organizations to easily share clinical information. Theoretically, this ability to exchange information should help to minimize the tendency for medical care to be geographically isolated and highly variable.[1]

HL7 International considers the following standards to be its primary standards – those standards that are most commonly used and implemented:[2]

  • Version 2.x Messaging Standard – an interoperability specification for health and medical transactions
  • Version 3 Messaging Standard – an interoperability specification for health and medical transactions
  • Clinical Document Architecture (CDA) – an exchange model for clinical documents, based on HL7 Version 3
  • Continuity of Care Document (CCD) – a US specification for the exchange of medical summaries, based on CDA.
  • Structured Product Labeling (SPL) – the published information that accompanies a medicine, based on HL7 Version 3
  • Clinical Context Object Workgroup (CCOW) – an interoperability specification for the visual integration of user applications

Other HL7 standards/methodologies include:[3]

Primary standards

HL7's primary standards are those standards that Health Level Seven International considers to be most commonly used and implemented.[2]

Version 2 messaging

The HL7 version 2 standard (also known as Pipehat) has the aim to support hospital workflows. It was originally created in 1989.[4]

HL7 version 2 defines a series of electronic messages to support administrative, logistical, financial as well as clinical processes. Since 1987 the standard has been updated regularly, resulting in versions 2.1, 2.2, 2.3, 2.3.1, 2.4, 2.5, 2.5.1, 2.6, 2.7, 2.7.1, 2.8, 2.8.1 and 2.8.2. The v2.x standards are backward compatible (e.g., a message based on version 2.3 will be understood by an application that supports version 2.6).

HL7 v2.x messages use a non-XML encoding syntax based on segments (lines) and one-character delimiters.[5] Segments have composites (fields) separated by the composite delimiter. A composite can have sub-composites (components) separated by the sub-composite delimiter, and sub-composites can have sub-sub-composites (subcomponents) separated by the sub-sub-composite delimiter. The default delimiters are carriage return for the segment separator, vertical bar or pipe (|) for the field separator, caret (^) for the component separator, ampersand (&) for the subcomponent separator, and number sign (#) for the default truncation separator. The tilde (~) is the default repetition separator. Each segment starts with a 3-character string that identifies the segment type. Each segment of the message contains one specific category of information. Every message has MSH as its first segment, which includes a field that identifies the message type. The message type determines the expected segment types in the message.[6] The segment types used in a particular message type are specified by the segment grammar notation used in the HL7 standards.

The following is an example of an admission message. MSH is the header segment, PID the Patient Identity, PV1 is the Patient Visit information, etc. The 5th field in the PID segment is the patient's name, in the order, family name, given name, second name (or their initials), suffix, etc. Depending on the HL7 V2.x standard version, more fields are available in the segment for additional patient information. 

MSH|^~\&|MegaReg|XYZHospC|SuperOE|XYZImgCtr|20060529090131-0500||ADT^A01^ADT_A01|01052901|P|2.5 EVN||200605290901|||| PID|||56782445^^^UAReg^PI||KLEINSAMPLE^BARRY^Q^JR||19620910|M||2028-9^^HL70005^RA99113^^XYZ|260 GOODWIN CREST DRIVE^^BIRMINGHAM^AL^35209^^M~NICKELL’S PICKLES^10000 W 100TH AVE^BIRMINGHAM^AL^35200^^O|||||||0105I30001^^^99DEF^AN PV1||I|W^389^1^UABH^^^^3||||12345^MORGAN^REX^J^^^MD^0010^UAMC^L||67890^GRAINGER^LUCY^X^^^MD^0010^UAMC^L|MED|||||A0||13579^POTTER^SHERMAN^T^^^MD^0010^UAMC^L|||||||||||||||||||||||||||200605290900 OBX|1|NM|^Body Height||1.80|m^Meter^ISO+|||||F OBX|2|NM|^Body Weight||79|kg^Kilogram^ISO+|||||F AL1|1||^ASPIRIN DG1|1||786.50^CHEST PAIN, UNSPECIFIED^I9|||A

HL7 v2.x has allowed for the interoperability between electronic Patient Administration Systems (PAS), Electronic Practice Management (EPM) systems, Laboratory Information Systems (LIS), Dietary, Pharmacy and Billing systems as well as Electronic Medical Record (EMR) or Electronic Health Record (EHR) systems. Currently, the HL7 v2.x messaging standard is supported by every major medical information systems vendor in the United States.[7]

Version 3 messaging

The HL7 version 3 standard[8] has the aim to support all healthcare workflows. Development of version 3 started around 1995, resulting in an initial standard publication in 2005. The v3 standard, as opposed to version 2, is based on a formal methodology (the HDF) and object-oriented principles.

RIM - ISO/HL7 21731

The Reference Information Model[9] (RIM) is the cornerstone of the HL7 Version 3 development process and an essential part of the HL7 V3 development methodology. RIM expresses the data content needed in a specific clinical or administrative context and provides an explicit representation of the semantic and lexical connections that exist between the information carried in the fields of HL7 messages.[10]

HL7 Development Framework - ISO/HL7 27931

The HL7 Version 3 Development Framework (HDF) is a continuously evolving process that seeks to develop specifications that facilitate interoperability between healthcare systems. The HL7 RIM, vocabulary specifications, and model-driven process of analysis and design combine to make HL7 Version 3 one methodology for development of consensus-based standards for healthcare information system interoperability. The HDF is the most current edition of the HL7 V3 development methodology.

The HDF not only documents messaging, but also the processes, tools, actors, rules, and artifacts relevant to development of all HL7 standard specifications. Eventually, the HDF will encompass all of the HL7 standard specifications, including any new standards resulting from analysis of electronic health record architectures and requirements.

HL7 specifications draw upon codes and vocabularies from a variety of sources. The V3 vocabulary work ensures that the systems implementing HL7 specifications have an unambiguous understanding of the code sources and code value domains they are using.

V3 Messaging

The HL7 version 3 messaging standard defines a series of Secure Text messages (called interactions) to support all healthcare workflows.

HL7 v3 messages are based on an XML encoding syntax, as shown in this example:[11]: 2.2.1 

<POLB_IN224200 ITSVersion="XML_1.0" xmlns="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <id root="2.16.840.1.113883.19.1122.7" extension="CNTRL-3456"/> <creationTime value="200202150930-0400"/> <!-- The version of the datatypes/RIM/vocabulary used is that of May 2006 --> <versionCode code="2006-05"/> <!-- interaction id= Observation Event Complete, w/o Receiver Responsibilities --> <interactionId root="2.16.840.1.113883.1.6" extension="POLB_IN224200"/> <processingCode code="P"/> <processingModeCode nullFlavor="OTH"/> <acceptAckCode code="ER"/> <receiver typeCode="RCV"> <device classCode="DEV" determinerCode="INSTANCE"> <id extension="GHH LAB" root="2.16.840.1.113883.19.1122.1"/> <asLocatedEntity classCode="LOCE"> <location classCode="PLC" determinerCode="INSTANCE"> <id root="2.16.840.1.113883.19.1122.2" extension="ELAB-3"/> </location> </asLocatedEntity> </device> </receiver> <sender typeCode="SND"> <device classCode="DEV" determinerCode="INSTANCE"> <id root="2.16.840.1.113883.19.1122.1" extension="GHH OE"/> <asLocatedEntity classCode="LOCE"> <location classCode="PLC" determinerCode="INSTANCE"> <id root="2.16.840.1.113883.19.1122.2" extension="BLDG24"/> </location> </asLocatedEntity> </device> </sender> <!-- Trigger Event Control Act & Domain Content --> </POLB_IN224200>

Clinical Document Architecture (CDA)

Main article: Clinical Document Architecture

The HL7 Clinical Document Architecture (CDA) is an XML-based markup standard intended to specify the encoding, structure and semantics of clinical documents for exchange.[12] The standard was jointly published with ISO as ISO/HL7 27932.

Continuity of Care Document (CCD)

Main article: Continuity of Care Document

CCD is a US specification for the exchange of medical summaries, based on CDA.

Structured Product Labeling (SPL)

Main article: Structured Product Labeling

SPL describes the published information that accompanies a medicine, based on HL7 Version 3.

CCOW

Main article: CCOW

CCOW, or "Clinical Context Object Workgroup," is a standard protocol designed to enable disparate applications to share user context and patient context in real-time, and at the user-interface level. CCOW implementations typically require a CCOW vault system to manage user security between applications.

Other standards and methods

Fast Healthcare Interoperability Resources (FHIR)

Main article: Fast Healthcare Interoperability Resources

Fast Healthcare Interoperability Resources is a draft standard from HL7 International designed to be easier to implement, more open and more extensible than version 2.x or version 3. It leverages a modern web-based suite of API technology, including a HTTP-based RESTful protocol, HTML and Cascading Style Sheets for user interface integration, a choice of JSON or XML for data representation, OAuth for authorization and ATOM for query results.[13]

Services Aware Interoperability Framework

Main article: HL7 Services Aware Interoperability Framework

The HL7 Services-Aware Enterprise Architecture Framework (SAIF) provides consistency between all HL7 artifacts, and enables a standardized approach to Enterprise Architecture (EA) development and implementation, and a way to measure the consistency.

SAIF is a way of thinking about producing specifications that explicitly describe the governance, conformance, compliance, and behavioral semantics that are needed to achieve computable semantic working interoperability. The intended information transmission technology might use a messaging, document exchange, or services approach.

SAIF is the framework that is required to rationalize interoperability of other standards. SAIF is an architecture for achieving interoperability, but it is not a whole-solution design for enterprise architecture management.

Arden syntax

Main article: Arden syntax

The Arden syntax is a language for encoding medical knowledge. HL7 International adopted and oversees the standard beginning with Arden syntax 2.0. These Medical Logic Modules (MLMs) are used in the clinical setting as they can contain sufficient knowledge to make single medical decisions.[citation needed] They can produce alerts, diagnoses, and interpretations along with quality assurance function and administrative support. An MLM must run on a computer that meets the minimum system requirements and has the correct program installed. Then, the MLM can give advice for when and where it is needed.

MLLP

A large portion of HL7 messaging is transported by Minimal Lower Layer Protocol (MLLP), also known as Lower Layer Protocol (LLP)[14] or Minimum Layer Protocol (MLP).[15] For transmitting via TCP/IP, header and trailer characters are added to the message to identify the beginning and ending of the message because TCP/IP is a continuous stream of bytes.[16] Hybrid Lower Layer Protocol (HLLP) is a variation of MLLP that includes a checksum to help verify message integrity. Amongst other software vendors, MLLP is supported by Microsoft,[17] Oracle,[18] Cleo.[19]

MLLP contains no inherent security or encryption but relies on lower layer protocols such as Transport Layer Security (TLS) or IPsec for safeguarding Protected health information outside of a secure network.

Functional EHR and PHR specifications

Functional specifications for an electronic health record.

Message details

The OBR segment

An OBR Segment carries information about an exam, diagnostic study/observation.[20] It is a required segment in an ORM (order message)[21] or an ORU (Observation Result) message.[22]

See also

References

  This article incorporates text from a free content work. Licensed under Creative Commons Attribution-ShareAlike 3.0 license. Text taken from Spronk 2007. To learn how to add open license text to Wikipedia articles, please see this how-to page. For information on reusing text from Wikipedia, please see the terms of use.

  1. ^ Joel Rodrigues (2010). Health Information Systems: Concepts, Methodologies, Tools, and Applications, Volume 1. IGI Global. p. xxxix. ISBN 978-1-60566-988-5.
  2. ^ a b "HL7 Primary Standards". Health Level Seven International.
  3. ^ "HL7 Standards". Health Level Seven International.
  4. ^ "HL7 FAQs". HL7.
  5. ^ "Understanding HL7 Messages". iNTERFACEWARE.
  6. ^ "HL7 Messages and Descriptions". Health Standards.
  7. ^ "Standards Organizations". Assistant Secretary for Planning and Evaluation (ASPE), Health and Human Services (HHS).
  8. ^ "HL7 V3 Standard - A High Level Overview". 26 May 2020.
  9. ^ "HL7 Reference Information Model". HL7.
  10. ^ "Tools & Resources – V3 Modeling & Methodology Tools". HL7.
  11. ^ Spronk, René, ed. (16 November 2007). "HL7 Message examples: version 2 and version 3". Ringholm. Ringholm bv.
  12. ^ Boone, Keith W. (20 May 2011). The CDA Book. ISBN 9780857293367.
  13. ^ Dan Munro (2014-03-30). "Setting Healthcare Interop On Fire". Forbes. Retrieved 2014-11-22.
  14. ^ "LLP - Lower Layer Protocol". iNTERFACEWARE.
  15. ^ "Minimum Layer Protocol". LYNIATE. 13 January 2020.
  16. ^ Spronk, Rene. "Transport Specification: MLLP, Release 1" (PDF). hl7.org. Health Level Seven Inc. Retrieved 5 September 2022.
  17. ^ "MLLP Receive and Send Components". MSDN.
  18. ^ "Oracle Application Server Integration B2B User's Guide, Supported Protocols". Oracle.
  19. ^ . Cleo. Archived from the original on 2015-06-07. Retrieved 2015-01-23.
  20. ^ "The HL7 OBR segment". Corepoint Health. Retrieved 2018-11-13.
  21. ^ "HL7 Glossary of Terms" (PDF). www.hl7.org. Retrieved 2018-11-13.
  22. ^ "What Is an ORU Message?". Health Standards. Retrieved 2018-11-13.

External links

  • HL7.org site
  • What does HL7 education mean?
  • HL7 International is a member of the Joint Initiative on SDO Global Health Informatics Standardization
  • HL7 Tools Page
  • Australian Healthcare Messaging Laboratory (AHML) - Online HL7 Message Testing and Certification
  • HL7 Tutorial Directory
  • HL7 Programming Tutorials, Short Tutorials on many HL7 concepts for Programmers.

Critical reviews

  • HL7 RIM Under Scrutiny (attempted rebuttal)(publication date?)
  • HL7 WATCH
  • Update 2013: Human Action in the Healthcare Domain: A Critical Analysis of HL7’s Reference Information Model

March 23, 2023
health, level, this, article, about, family, standards, organization, that, created, them, health, level, seven, international, health, level, seven, refers, international, standards, transfer, clinical, administrative, data, between, software, applications, u. This article is about the family of standards For the organization that created them see Health Level Seven International Health Level Seven or HL7 refers to a set of international standards for transfer of clinical and administrative data between software applications used by various healthcare providers These standards focus on the application layer which is layer 7 in the OSI model The HL7 standards are produced by Health Level Seven International an international standards organization and are adopted by other standards issuing bodies such as American National Standards Institute and International Organization for Standardization Hospitals and other healthcare provider organizations typically have many different computer systems used for everything from billing records to patient tracking All of these systems should communicate with each other or interface when they receive new information or when they wish to retrieve information but not all do so HL7 International specifies a number of flexible standards guidelines and methodologies by which various healthcare systems can communicate with each other Such guidelines or data standards are a set of rules that allow information to be shared and processed in a uniform and consistent manner These data standards are meant to allow healthcare organizations to easily share clinical information Theoretically this ability to exchange information should help to minimize the tendency for medical care to be geographically isolated and highly variable 1 HL7 International considers the following standards to be its primary standards those standards that are most commonly used and implemented 2 Version 2 x Messaging Standard an interoperability specification for health and medical transactions Version 3 Messaging Standard an interoperability specification for health and medical transactions Clinical Document Architecture CDA an exchange model for clinical documents based on HL7 Version 3 Continuity of Care Document CCD a US specification for the exchange of medical summaries based on CDA Structured Product Labeling SPL the published information that accompanies a medicine based on HL7 Version 3 Clinical Context Object Workgroup CCOW an interoperability specification for the visual integration of user applicationsOther HL7 standards methodologies include 3 Fast Healthcare Interoperability Resources FHIR a standard for the exchange of resources Arden Syntax a grammar for representing medical conditions and recommendations as a Medical Logic Module MLM Claims Attachments a Standard Healthcare Attachment to augment another healthcare transaction Functional Specification of Electronic Health Record EHR Personal Health Record PHR systems a standardized description of health and medical functions sought for or available in such software applications GELLO a standard expression language used for clinical decision supportContents 1 Primary standards 1 1 Version 2 messaging 1 2 Version 3 messaging 1 3 Clinical Document Architecture CDA 1 4 Continuity of Care Document CCD 1 5 Structured Product Labeling SPL 1 6 CCOW 2 Other standards and methods 2 1 Fast Healthcare Interoperability Resources FHIR 2 2 Services Aware Interoperability Framework 2 3 Arden syntax 2 4 MLLP 2 5 Functional EHR and PHR specifications 3 Message details 3 1 The OBR segment 4 See also 5 References 6 External links 6 1 Critical reviewsPrimary standards EditHL7 s primary standards are those standards that Health Level Seven International considers to be most commonly used and implemented 2 Version 2 messaging Edit The HL7 version 2 standard also known as Pipehat has the aim to support hospital workflows It was originally created in 1989 4 HL7 version 2 defines a series of electronic messages to support administrative logistical financial as well as clinical processes Since 1987 the standard has been updated regularly resulting in versions 2 1 2 2 2 3 2 3 1 2 4 2 5 2 5 1 2 6 2 7 2 7 1 2 8 2 8 1 and 2 8 2 The v2 x standards are backward compatible e g a message based on version 2 3 will be understood by an application that supports version 2 6 HL7 v2 x messages use a non XML encoding syntax based on segments lines and one character delimiters 5 Segments have composites fields separated by the composite delimiter A composite can have sub composites components separated by the sub composite delimiter and sub composites can have sub sub composites subcomponents separated by the sub sub composite delimiter The default delimiters are carriage return for the segment separator vertical bar or pipe for the field separator caret for the component separator ampersand amp for the subcomponent separator and number sign for the default truncation separator The tilde is the default repetition separator Each segment starts with a 3 character string that identifies the segment type Each segment of the message contains one specific category of information Every message has MSH as its first segment which includes a field that identifies the message type The message type determines the expected segment types in the message 6 The segment types used in a particular message type are specified by the segment grammar notation used in the HL7 standards The following is an example of an admission message MSH is the header segment PID the Patient Identity PV1 is the Patient Visit information etc The 5th field in the PID segment is the patient s name in the order family name given name second name or their initials suffix etc Depending on the HL7 V2 x standard version more fields are available in the segment for additional patient information MSH amp MegaReg XYZHospC SuperOE XYZImgCtr 20060529090131 0500 ADT A01 ADT A01 01052901 P 2 5 EVN 200605290901 PID 56782445 UAReg PI KLEINSAMPLE BARRY Q JR 19620910 M 2028 9 HL70005 RA99113 XYZ 260 GOODWIN CREST DRIVE BIRMINGHAM AL 35209 M NICKELL S PICKLES 10000 W 100TH AVE BIRMINGHAM AL 35200 O 0105I30001 99DEF AN PV1 I W 389 1 UABH 3 12345 MORGAN REX J MD 0010 UAMC L 67890 GRAINGER LUCY X MD 0010 UAMC L MED A0 13579 POTTER SHERMAN T MD 0010 UAMC L 200605290900 OBX 1 NM Body Height 1 80 m Meter ISO F OBX 2 NM Body Weight 79 kg Kilogram ISO F AL1 1 ASPIRIN DG1 1 786 50 CHEST PAIN UNSPECIFIED I9 A HL7 v2 x has allowed for the interoperability between electronic Patient Administration Systems PAS Electronic Practice Management EPM systems Laboratory Information Systems LIS Dietary Pharmacy and Billing systems as well as Electronic Medical Record EMR or Electronic Health Record EHR systems Currently the HL7 v2 x messaging standard is supported by every major medical information systems vendor in the United States 7 Version 3 messaging Edit The HL7 version 3 standard 8 has the aim to support all healthcare workflows Development of version 3 started around 1995 resulting in an initial standard publication in 2005 The v3 standard as opposed to version 2 is based on a formal methodology the HDF and object oriented principles RIM ISO HL7 21731The Reference Information Model 9 RIM is the cornerstone of the HL7 Version 3 development process and an essential part of the HL7 V3 development methodology RIM expresses the data content needed in a specific clinical or administrative context and provides an explicit representation of the semantic and lexical connections that exist between the information carried in the fields of HL7 messages 10 HL7 Development Framework ISO HL7 27931The HL7 Version 3 Development Framework HDF is a continuously evolving process that seeks to develop specifications that facilitate interoperability between healthcare systems The HL7 RIM vocabulary specifications and model driven process of analysis and design combine to make HL7 Version 3 one methodology for development of consensus based standards for healthcare information system interoperability The HDF is the most current edition of the HL7 V3 development methodology The HDF not only documents messaging but also the processes tools actors rules and artifacts relevant to development of all HL7 standard specifications Eventually the HDF will encompass all of the HL7 standard specifications including any new standards resulting from analysis of electronic health record architectures and requirements HL7 specifications draw upon codes and vocabularies from a variety of sources The V3 vocabulary work ensures that the systems implementing HL7 specifications have an unambiguous understanding of the code sources and code value domains they are using V3 MessagingThe HL7 version 3 messaging standard defines a series of Secure Text messages called interactions to support all healthcare workflows HL7 v3 messages are based on an XML encoding syntax as shown in this example 11 2 2 1 lt POLB IN224200 ITSVersion XML 1 0 xmlns urn hl7 org v3 xmlns xsi http www w3 org 2001 XMLSchema instance gt lt id root 2 16 840 1 113883 19 1122 7 extension CNTRL 3456 gt lt creationTime value 200202150930 0400 gt lt The version of the datatypes RIM vocabulary used is that of May 2006 gt lt versionCode code 2006 05 gt lt interaction id Observation Event Complete w o Receiver Responsibilities gt lt interactionId root 2 16 840 1 113883 1 6 extension POLB IN224200 gt lt processingCode code P gt lt processingModeCode nullFlavor OTH gt lt acceptAckCode code ER gt lt receiver typeCode RCV gt lt device classCode DEV determinerCode INSTANCE gt lt id extension GHH LAB root 2 16 840 1 113883 19 1122 1 gt lt asLocatedEntity classCode LOCE gt lt location classCode PLC determinerCode INSTANCE gt lt id root 2 16 840 1 113883 19 1122 2 extension ELAB 3 gt lt location gt lt asLocatedEntity gt lt device gt lt receiver gt lt sender typeCode SND gt lt device classCode DEV determinerCode INSTANCE gt lt id root 2 16 840 1 113883 19 1122 1 extension GHH OE gt lt asLocatedEntity classCode LOCE gt lt location classCode PLC determinerCode INSTANCE gt lt id root 2 16 840 1 113883 19 1122 2 extension BLDG24 gt lt location gt lt asLocatedEntity gt lt device gt lt sender gt lt Trigger Event Control Act amp Domain Content gt lt POLB IN224200 gt Clinical Document Architecture CDA Edit Main article Clinical Document Architecture The HL7 Clinical Document Architecture CDA is an XML based markup standard intended to specify the encoding structure and semantics of clinical documents for exchange 12 The standard was jointly published with ISO as ISO HL7 27932 Continuity of Care Document CCD Edit Main article Continuity of Care Document CCD is a US specification for the exchange of medical summaries based on CDA Structured Product Labeling SPL Edit Main article Structured Product Labeling SPL describes the published information that accompanies a medicine based on HL7 Version 3 CCOW Edit Main article CCOW CCOW or Clinical Context Object Workgroup is a standard protocol designed to enable disparate applications to share user context and patient context in real time and at the user interface level CCOW implementations typically require a CCOW vault system to manage user security between applications Other standards and methods EditFast Healthcare Interoperability Resources FHIR Edit Main article Fast Healthcare Interoperability Resources Fast Healthcare Interoperability Resources is a draft standard from HL7 International designed to be easier to implement more open and more extensible than version 2 x or version 3 It leverages a modern web based suite of API technology including a HTTP based RESTful protocol HTML and Cascading Style Sheets for user interface integration a choice of JSON or XML for data representation OAuth for authorization and ATOM for query results 13 Services Aware Interoperability Framework Edit Main article HL7 Services Aware Interoperability Framework The HL7 Services Aware Enterprise Architecture Framework SAIF provides consistency between all HL7 artifacts and enables a standardized approach to Enterprise Architecture EA development and implementation and a way to measure the consistency SAIF is a way of thinking about producing specifications that explicitly describe the governance conformance compliance and behavioral semantics that are needed to achieve computable semantic working interoperability The intended information transmission technology might use a messaging document exchange or services approach SAIF is the framework that is required to rationalize interoperability of other standards SAIF is an architecture for achieving interoperability but it is not a whole solution design for enterprise architecture management Arden syntax Edit Main article Arden syntax The Arden syntax is a language for encoding medical knowledge HL7 International adopted and oversees the standard beginning with Arden syntax 2 0 These Medical Logic Modules MLMs are used in the clinical setting as they can contain sufficient knowledge to make single medical decisions citation needed They can produce alerts diagnoses and interpretations along with quality assurance function and administrative support An MLM must run on a computer that meets the minimum system requirements and has the correct program installed Then the MLM can give advice for when and where it is needed MLLP Edit A large portion of HL7 messaging is transported by Minimal Lower Layer Protocol MLLP also known as Lower Layer Protocol LLP 14 or Minimum Layer Protocol MLP 15 For transmitting via TCP IP header and trailer characters are added to the message to identify the beginning and ending of the message because TCP IP is a continuous stream of bytes 16 Hybrid Lower Layer Protocol HLLP is a variation of MLLP that includes a checksum to help verify message integrity Amongst other software vendors MLLP is supported by Microsoft 17 Oracle 18 Cleo 19 MLLP contains no inherent security or encryption but relies on lower layer protocols such as Transport Layer Security TLS or IPsec for safeguarding Protected health information outside of a secure network Functional EHR and PHR specifications Edit Functional specifications for an electronic health record Message details EditThe OBR segment Edit An OBR Segment carries information about an exam diagnostic study observation 20 It is a required segment in an ORM order message 21 or an ORU Observation Result message 22 See also EditCDISC DICOM DVTk Electronic medical record eHealth EHRcom European Institute for Health Records European Union Fast Healthcare Interoperability Resources Health Informatics Health Informatics Service Architecture HISA Healthcare Services Specification Project HSSP Integrating the Healthcare Enterprise IHE ISO TC 215 LOINC NextGen Connect openEHR Foundation Public Health Information Network SNOMED SNOMED CT Nomenclature for Properties and Units terminologyReferences Edit This article incorporates text from a free content work Licensed under Creative Commons Attribution ShareAlike 3 0 license Text taken from Spronk 2007 To learn how to add open license text to Wikipedia articles please see this how to page For information on reusing text from Wikipedia please see the terms of use Joel Rodrigues 2010 Health Information Systems Concepts Methodologies Tools and Applications Volume 1 IGI Global p xxxix ISBN 978 1 60566 988 5 a b HL7 Primary Standards Health Level Seven International HL7 Standards Health Level Seven International HL7 FAQs HL7 Understanding HL7 Messages iNTERFACEWARE HL7 Messages and Descriptions Health Standards Standards Organizations Assistant Secretary for Planning and Evaluation ASPE Health and Human Services HHS HL7 V3 Standard A High Level Overview 26 May 2020 HL7 Reference Information Model HL7 Tools amp Resources V3 Modeling amp Methodology Tools HL7 Spronk Rene ed 16 November 2007 HL7 Message examples version 2 and version 3 Ringholm Ringholm bv Boone Keith W 20 May 2011 The CDA Book ISBN 9780857293367 Dan Munro 2014 03 30 Setting Healthcare Interop On Fire Forbes Retrieved 2014 11 22 LLP Lower Layer Protocol iNTERFACEWARE Minimum Layer Protocol LYNIATE 13 January 2020 Spronk Rene Transport Specification MLLP Release 1 PDF hl7 org Health Level Seven Inc Retrieved 5 September 2022 MLLP Receive and Send Components MSDN Oracle Application Server Integration B2B User s Guide Supported Protocols Oracle Which Secure Managed File Transfer Protocol is Right for You Cleo Archived from the original on 2015 06 07 Retrieved 2015 01 23 The HL7 OBR segment Corepoint Health Retrieved 2018 11 13 HL7 Glossary of Terms PDF www hl7 org Retrieved 2018 11 13 What Is an ORU Message Health Standards Retrieved 2018 11 13 External links EditHL7 org site What does HL7 education mean HL7 International is a member of the Joint Initiative on SDO Global Health Informatics Standardization HL7 Tools Page Australian Healthcare Messaging Laboratory AHML Online HL7 Message Testing and Certification Comprehensive Implementation of HL7 v3 Specifications in Java NIST HL7 Conformance Testing Framework ICH HL7 Regulated Product Submissions HL7 Tutorial Directory HL7 Programming Tutorials Short Tutorials on many HL7 concepts for Programmers Critical reviews Edit HL7 RIM An Incoherent Standard HL7 RIM Under Scrutiny attempted rebuttal publication date HL7 WATCH Update 2013 Human Action in the Healthcare Domain A Critical Analysis of HL7 s Reference Information Model Retrieved from https en wikipedia org w index php title Health Level 7 amp oldid 1145219935, wikipedia, wiki, book, books, library,

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