Transcript Health Level 7

Introduction to HL7 Version 3
Ku-Yaw Chang
[email protected]
Assistant Professor, Department of
Computer Science and Information Engineering
Da-Yeh University
What Is HL7?
The HL7 organization was founded in
1987
In June 1994 HL7 was designated as an
ANSI accredited standards development
organization (SDO)
HL7 Mission Statement
To provide standards for the exchange,
management and integration of data that
supports clinical patient care and the
management, delivery and evaluation of
healthcare services.
... the complete ‘life cycle’ of a standards
specification -- development, adoption,
market recognition, utilization and
adherence.
HL7 Standard Versions
2.0 (1988)
2.1 (1990)
2.2 (1994)
2.3 (1997)
2.3.1 (1999)
2.4 (2002)
2.5 (2003)
3.0 (2004) in draft
What does “HL7” stand for?
A domain-specific, common protocol for the
exchange of health care information.
Function
Communication
7
6
5
4
3
2
1
Application
Presentation
Session
Transport
Network
Data Link
Physical
ISO-OSI Communication Architecture Model
Benefits of V3 to Providers
Deals with complexity of the HC environment:
 Facilitates
integration of
heterogeneous systems
 Increases
choices of innovative
best-of-breed solutions
 Provides
 Allows
support for legacy systems
reliable verification of
vendors’ conformance claims
Benefits of V3 to Vendors
 Provides
improved protocol for
interconnecting heterogeneous systems
 Reduces
installation effort
–
reduces site-specific negotiations
–
simplifies interface programming
 Promotes
vendor specialization by
allowing segmentation of product
lines into niche market spaces
HL7 Modeling
Abstractions:
Dispense
Medications
Manage
Care
Perform Lab
Tests
Review
Utilization
Activities
(Use Case
Model)
Objects
Account
Patient
Provider
Encounter
Order
(Information
Model)
Communication
(Interaction and
Message Models)
HL7 message
Finance
HL7 message
ADT
Pharmacy
HIPPA
Health Insurance Portability and
Accountability Act, 1996