HL7 Version 3 in Europe A Standard in Practice HL7...HL7 Version 3 in Europe A Standard in Practice...
Transcript of HL7 Version 3 in Europe A Standard in Practice HL7...HL7 Version 3 in Europe A Standard in Practice...
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HL7 Version 3 in Europe A Standard in Practice
Strategies & Concepts toReal Implementations
BALTIC IT&T 2006 FORUM: eBaltics – Riga (LV) April 5-7, 2006
Dr. Kai U. Heitmann M.D.Managing Consultant, Heitmann Consulting and Services (The Netherlands)Institute for Medical Statistics, Informatics & Epidemiology, University of Cologne (Germany)
Director International Affiliates - Board of Directors HL7 USAChair HL7 Germany
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HL7 Version 3 in Europe A Standard in Practice
eHealth Questions (and answers):What is HL7? And why do we need it?
How to start?
HL7 “Europe” and Worldwide:What happened so far?
How to conclude?
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eHealth Concepts - Questions
• Applications?– Prioritize functionality for patients & providers
• Communication?– Facilitate electronic data exchange– Allow cross-sectoral communication
• Infrastructure?– Highway for healthcare information– Dealing with Transport & Security
• Plan and Vision?– Analysis of Care Processes– Strategy and steps towards an EHR
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Health Level Seven - The Organization
• HL7, founded 1987
• ANSI-accreditedStandards DevelopmentOrganization
• Approx. 2200 members
• First non-US country„joined“ early 90s
• Official first affiliates in 1992 (Germany,Canada, the Netherlands)
ISO’s Open SystemsInterconnect (OSI) model:Application Level” – level 7
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Who is HL7?
• Over 500 organizational members, about 2200total members
• Up to 500 attend Working Group Meetings -including about 20% international attendees at
• International: 33 countries– US– Affiliates in Canada, Europe, Asia-Pacific, Latin
America, Africa
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HL7 International (more than 30 countries)
FinlandFinland
United StatesUnited States
CanadaCanada
FranceFranceJapanJapanIndiaIndia
PolandPolandDenmarkDenmark
ArgentinaArgentina
CroatiaCroatia
AustraliaAustralia
UnitedUnitedKingdomKingdom
TurkeyTurkey TaiwanTaiwan
SwitzerlandSwitzerland
New ZealandNew Zealand
The NetherlandsThe NetherlandsGermanyGermany
KoreaKorea
Southern AfricaSouthern Africa
MexicoMexico
ChinaChina
LithuaniaLithuania
BrazilBrazil
GreeceGreece
IrelandIrelandItalyItaly
Czech RCzech R
SpainSpainBulgariaBulgaria
MalaysiaMalaysia
UruguayUruguay
ChileChile
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UK2000
Ireland2003
Netherlands1996
Germany1995
France2004
Spain2003
Finland1996
Poland2003
Czech Republic2001
Lithuania2002
Denmark2003
Italy2003Switzerland
2000
Croatia2001
Latvia2006?
HL7 in Europe
• Starting point (1995) of International Activities / Affiliates
• 16 European Affiliates
Portugal2006? Bulgaria
2005
Austria2006?
Sweden2006
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HL7 Version 3
• Basically– HL7 Version 3 is a family of object-oriented
communication standards, based on theHL7 Reference Information Model (RIM)
– The RIM is a worldwide accepted model for healthinformation
– Also basis for other SDOs (CEN, ISO)– Used in many projects and real world environments for
more than 3 1/2 years now (Early Implementers)
• Models as a base of all products within HL7 V3– Symbolic structured representation of parts of the reality– UML (Universal Modeling Language) used
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Version 3 is based on models
• Models are the “common” language to expresscontent, structure and interactions forcommunication– Content: Data types, Vocabulary– Structures and Semantics of the information– Interactions between communicating parties
• Messages are the result when putting together– The static model– The dynamic model
• Answers the question: When do Iexchange/share what?
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Role Participation ActEntity
HL7 Version 3
• „Building bricks“ forcommunication models– Reference Information Model RIM– All objects, activities and their
relationship in ONE generichealthcare model
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What‘s exciting about HL7 Version 3?
• Supports cross-sectoral cross-sectoral Care Process ChainsCare Process Chains• Reflects internationalinternational contributions/standards• Reflects expert knowledgeexpert knowledge collected over decades
General Pract
Patient Aftercare
Hospital Surg
Rad
Lab
Specialist
Healthcare System
Information flow
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How is Version 3 “better”?
• Conceptual foundation– a single, common reference information model to be
used across HL7
• Semantic foundation– in explicitly defined concept domains drawn from the
best terminologies
• Abstract design methodology that istechnology-neutral– able to be used with whatever is the technology de jour
(e.g. XML, UML, etc.)
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How is Version 3 “better”?
• Maintain a repository (database) of thesemantic content– assure a single source– enable development of support tooling
• Tools to auto-generate XML schemas– for messages once the semantic content is final (via
ballot and conformance constraints)
• Tools for documentation of constraints– for both message definition and conformance
specifications
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HL7 Version 3 in Europe A Standard in Practice
eHealth Questions (and answers):What is HL7? And why do we need it?
How to start?
HL7 in “Europe”:What happened so far?
How to conclude?
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“proprietary” CDAHL7 v3 …“payload”content
HL7 |^~ XML …exchangeformat
Starting V3
MLLP ebXML WS-* FTP/S S/MIME HTTP/S …transportsecurity
• Starting real life project means...dealing with all these challenges & layers– Content– Exchange Format (=XML..., what else!?)– Transport & Security (Infrastructure / Framework,
International solutions / standards, Legal requirements)
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“Layers” of activities in Europe
• XML encoding and applicationbuilding
• V3 messaging standard– early implementor projects
• V3 based documents
• Infrastructure and Framework
• Education
XML
InfrastructureSecurity
CDA
HL7 v3
Training
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Drivers for v3 adoption
•• Need of support for large scale integrationNeed of support for large scale integration
• V3 has “built-in” support for ComplexDatatypes– “universally unique” instance identifiers for persons,
places, organizations, practitioners, URL’s, orders,observations, etc.
– internationally feasible name datatype (persons andorganizations)
– time and date-related datatype forms– codes (binding standard vocabularies to RIM attributes)
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Drivers for v3 adoption
• V3 has “built-in” support for large scaleintegration (city, region, province, nationwide,international)– a coherent set of (structures) models guaranteeing
semantic interoperability and re-usability– identifier strategy supporting wide integration– models and tools based design and implementation
• Support of decision support and rules-basedprocessing
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HL7 Version 3 in Europe A Standard in Practice
eHealth Questions (and answers):What is HL7? And why do we need it?
How to start?
HL7 in “Europe”:What happened so far?
How to conclude?
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Short Trip through Europe
• Visiting some EU Activities and Activists
• HL7 Version 3 in Practice
UK
NetherlandsGermany
Finland
Croatia
Lithuania
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HL7 Activities in…
Croatia
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InfrastructureSecurity
HL7 v3 TrainingCroatia
• HL7 Croatia in September 2002– Croatian Society for Medical Informatics (CSMI) and
Croatian Society for Medical and Biological Engineering(CROMBES)
– Supported by• Ministry of Health of the Republic of Croatia• Croatian State Office for Standardization and Metrology• Croatian Public Health Institute
– Education
• National Infrastructure Project• WebService Based Infrastructure for the Exchange of
Information• Large Mobile Phone vendor
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HL7 Activities in…
Finland
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Finland
• Use of HL7‘s Clinical Document Architecture– Start of activities around 2000– Connection implementation within four health districts in
Finland
• HL7 Finland defined application level protocol– Based on ebXML
• Currently: exchange of other documents likereferrals, prescriptions and health certificates
InfrastructureSecurity
CDA
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Finland
• CDA Release 2– specifications started 2004– funded by MoHSW and HL7 FI (together 260 k€)– standarization activites build in a broad sense around
HL7 TC (formal mandate)
• areal funding for 2004-2005 towards 2007– MoSHW will distribute 20 + 10 M€ for the areas– one technical requirement is to use HL7 CDA...
InfrastructureSecurity
CDA
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Specialized care epicrisis
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HL7 Activities in…
United Kingdom
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United Kingdom
• GP 2 GP Project– Early Implementor Project based on Version 3
• Infrastructure Framework– Support by NHS
• NHS in England:– Funding for several years– Many bn‘s of money– aims to connect more than 30,000 GPs and 270 acute,
community and mental NHS Trusts in a single nationalsystem.
InfrastructureSecurity
HL7 v3
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HL7 Activities in…
Germany
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Germany
• Content: SCIPHOX Project (CDA)
• Infrastructure Framework– Project by Ministry of Health
– Consortium of 5 vendors/organisations– Introduction of the Health card for patients– Health professional card for providers
• HL7 Version 3 messaging (Dialysis, Lab)
InfrastructureSecurity
CDAHL7 v3
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Germany: Cards as the key
For a Telematic Infrastructure
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The SCIPHOX project and CDA
• uses CDA R1 model as a start
• framework for basic sharedinformation (CDA Header)– sender, recipient, patient, event etc.
• definition of structures (CDA Body)– Structure of information units based on analysis– Story boards (discharge/referral documents, long term
diabetes documentation, emergency info)
• Formal voting procedures for specifications
• Also activities in version 3 messaging
CDA
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Care Record Summary (Arztbrief)Recent development• „discharge letter“• Based on CDA R2• Implementation
Guideline– 150 pages– Four defined use cases– Numerous examples– Implementation
rules (formalized)
• Industry Driven!
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HL7 Activities in…
The Netherlands
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Let us think abouthaving stable shelves...
or a stable EHR...
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The Netherlands
• HL7 Project Office– Projects, Training (focussed on Version 3)
• National IT Institute for Healthcare
• Projects (among others)– Modelling the perinatology domain
• Domain analysis, Modelling
• Implementation guidelines
• Proof of concept: Modelling
– Medication Registry as one of the first steps to a EHRin the Netherlands
• Implementations with several vendors at large exhibition
InfrastructureSecurity
HL7 v3 Training
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HL7 Activities in…
Lithuania
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Lithuanian eHealth
• National Infrastructure Project
• Funded by the World Bank
• HL7 Version 3– Facilitate electronic data exchange– To allow cross-sectoral communication– Implementation Guidelines
• Stepwise approach– Communication Backbone– “high priority” applications first– Preparing steps towards an EHR
InfrastructureSecurity
HL7 v3/CDA
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• Registries– Also designed as switch points
for communication– Patients– Providers– Generic Activities– Specific Activities– Key roles:
• A transportation infrastructureincluding security (“backbone”)
• (a network of) Integration Engines
• connecting Hospitals (h), General Practitioners (g), Specialist(s) in an interoperable way
Lithuanian eHealth Concept
h
Registry
g
h g
Registry
s
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HL7 Version 3 in Europe A Standard in Practice
eHealth Questions (and answers):What is HL7? And why do we need it?
How to start?
HL7 in “Europe”:What happened so far?
How to conclude?
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PublicHealthReporting
LegacySystems...
ProviderPortal
PatientPortal
DatabaseContentMaintenance
Central/National/Regional
Service PointIdentification
Authorization
Authentication
Logging
Other functions
Architecture (UK, CA, DE, NL, HR, LT)
PatientRegistry
ProviderRegistry
OrganizationRegistry
Act Repository(later: „the EHR“)
Act Reference Registry
Specialist FacilityProvider (Specialist)•Consultation Request•Medical history•Subject./Object./Ass./Plan•Referral
Lab Facility•Order•Result
Pharmacy•Prescription/Dispense
GP FacilityRegistration Office•CID/Demographics•Social Insurance Verification•Subscription to HCF•Provider Assignment •ConsentProvider (GP)•(appointment)•Medical history•Subject./Object./Ass./Plan•Referral
Hospitals/...• ...
...
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HL7 Activities Worldwide – Conclusion
• HL7 Migration in the past several years– ...from an US „based“ standard used mainly in hospitals– ...to a globally defined suite of international standards– ...implemented locally– ...with major international contribution as a feedback to
the development process– ...ready (and proven) to support care process chains
• More than 80 implementation projects– Version 3 Messaging and Documents– Practical implementations– Feedback for the standard
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HL7 Activities Worldwide – Conclusion
• Education required!– Modeling Methodology– Version 3 Messaging and CDA Documents
• Early implementor projects– Version 3 Messaging and CDA Documents– Practical implementations– Feedback for the standard
• Infrastructure Framework needed
• Funding– collaboration with national bodies (Ministry of Health)
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HL7 Calendar 2006
International HL7Interoperability Conference
Cologne (Germany),August 24+25, 2006
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A word about myself
• Dr Kai U. Heitmann– Studies of medicine 1982-1988, doctor of medicine– Complementary education in Medical Informatics– Works in standards developing areas since 1995,
internationally since 1998– Board Member of HL7 International, Chair HL7
Germany Germany– Contributions to HIS of University of Cologne 1994-1997, system
introduction and integration– Deputy head of Medical Informatics Unit of the University of
Cologne (Germany) 1998-2005– Independent Healthcare IT Consultant with head office in the
Netherlands since January 2004– Involved in and finalized many communication and integration
projects in the Netherlands, Germany, Lithuania, Australia...