Mary Kratz wrote:
>
> Where might the VA MPI feature specs be found?
Here is a brief description of MPI and the related CIRN package from the 1998
VistA monographs. If this sounds of interest, I can dig further to see what I
can find.
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Master Patient Index (MPI)
Overview There are over 140 Veterans Health Administration (VHA) databases and
more than 160 Veterans Health Information Systems and Technology Architecture
(VISTA) systems in use around the country. Because of this wide distribution of
information, there is great potential for individual patient data to be kept
under more than one identification number. To support maintenance of a unique
patient identifier and a single master index of all VA patients, and to allow
messaging of patient information among the institutional partners [i.e., VHA,
Veterans Benefits Administration (VBA), Board of Veterans Appeals (BVA), and
National Cemetery Service (NCS)] the Master Patient Index (MPI) has been
created. The MPI maintains a central index to correctly identify patients across
many systems. MPI contains the following three modules:
Features Master Patient Index � Austin
The MPI, located at the Austin Automation Center, maintains a unique patient
index and a current list of facilities where the patient is known in order to
enable sharing of patient data between operationally diverse systems.
The VAMCs transmit patient records to the MPI, via the initialization process
and resulting from daily operations at the VAMC.
At the MPI, each patient is assigned an Integration Control Number (ICN) and a
CIRN Master Of Record (CMOR).
The Index is maintained and updated as patients are added or their data is
updated at the VAMCs.
Master Patient Index � VISTA
This is the software that resides in VISTA and sends patient data to the MPI �
Austin and to sites where a patient has been seen.
During the initialization of the MPI � Austin, each VA Medical Center requests
ICNs for all of its patients whose records reflect activity in the past three
years.
When a patient's record is first entered into the system, the MPI assigns and
returns an ICN, along with the CIRN Master of Record (CMOR) designation and a
list of other treating facilities where the patient has been seen.
Once this process has been completed, the MPI � Austin is kept up-to-date
through MPI � VISTA, Patient Information Management System (PIMS), and Clinical
Information Resource Network (CIRN) options.
MPI VISTA enables sites to query the MPI, to inactivate an ICN, and to manage
incoming and outgoing Change CMOR requests.
CIRN Master of Record
The CIRN Master of Record (CMOR) is the site with responsibility for the
identifying information in a patient's record in the MPI � Austin and is the
only site authorized to change the data after the patient has been established.
The first site to identify a patient to the MPI � Austin is initially designated
the CMOR.
After the initialization process, the patient's CMOR Activity Scores are
compared at the CMOR and the non-CMOR sites. If a non-CMOR site has a higher
CMOR Activity Score for a patient and the difference is greater than 80%, the
current CMOR sends an HL7 message to the MPI � Austin and to all sites which
have treated this patient informing them that the CMOR has changed.
=======================================================================================
Clinical Information Resource Network (CIRN)
Overview Clinical Information Resource Network (CIRN) provides clinicians with
an integrated view of a patient's care across sites at which the patient is
being treated in the VISN. It insures that a patient's identified primary source
of care receives all data on that patient's care, regardless of source. It also
supports the exchange of data between VISNs on a controlled basis.
The key objectives of the CIRN project are to support patient care by:
identifying the sites where a patient is receiving care,
sharing clinical and updated administrative data for a patient between those
sites
creating and maintaining a clinical repository at each treating facility
reflecting patient care delivered throughout the VISN.
Features Unique identification of the patient and the patient's primary facility
using the Master Patient Index;
Synchronization of key patient demographic data at all sites where the patient
is treated in the VISN. The synchronized data includes patient name, social
security number, date of birth, address, and marital status.
Movement of the clinical data between sites and into the clinical repository;
An integrated view of the patient's clinical data found in the clinical
repository.
The clinical repository:
stores clinical essentials of data important to primary and longitudinal patient
care,
accommodates data from external sites,
facilitates decision support,
manages data independently of departmental application storage policies,
supports longitudinal record growth,
supports evolution of data classes stored.
--
Greg Kreis Pioneer Data Systems, Inc.
[EMAIL PROTECTED] http://www.PioneerDataSys.com
http://www.Hardhats.org/ <-- worldwide VISTA/DHCP users
Over the past 10 years, I have been most surprised by the number of people
writing HTML by hand. I thought they would avoid it. - Tim Berners-Lee, MacWeek
quote in 1999.
