Download HL7 Immunization and Vaccine Adverse Event Reports (VAERS

iREX vs. T. Rex:
Immunization Record Exchange
David John Marotta
DT7 Software
www.dt7.com/cdc
iREX Project Description
 CDC Project to encourage HL7
Immunization transport between state
registries
 Toolkit to facilitate HL7 Immunization
encoding, transport, receipt,
acknowledgement, and parsing.
Immunization Registry Exchange
 Message Trigger
 Message Encoding
 Message Transport
 Message Receipt
 Message Acknowledgement
 Message Parsing
 Message Handling
iREX Toolkit
Message Trigger
 Business case for implementing
immunization message exchange
 Funding and management support for
project implementation
 Business rules to send a VXU V04 Unsolicited Vaccination Record Update
 Business rules to send a VXQ V01- Query
for Vaccination Record
Message Encoding
 Visual Message Definition (VMD) takes
HL7-friendly file and handles the message
encoding.
Message Transport
 Secure HTTP (HTTPS)
 Privacy
 Authentication
 Simplicity
 Real-time
acknowledgement
Dedicated line (DL)
This Proprietary Software
Product Mandated By Our
State Legislature (TPSPMBOSL)
Virtual Private Network (VPN)
Digital Certificates (DC)
Encrypted Email (eEMail)
Encrypted FTP (eFTP)
Message Receipt
 HTTPS is always available
 Messages can be stored into any format
 ODBC table inserts can store messages
directly into a database
Message Acknowledgement
 Messages are acknowledged in real time
 Message acknowledgement can include data
specific responses from an interaction with
a database
 Acknowledgement does not require the
sending system to have a message server
Message Parsing
 The visual message definition is used to
parse the message according to the
implementation guide
 Messages are parsed into an HL7-friendly
record format
Message Handling
 Business rules when to accept unsolicited
update message
 Business rules when to respond to query
request
 Data scrubbing and quality control issues
 De-duplification of patients
 De-duplification of care facitilites
iREX Toolset
 Visual Message Definition
 Java HTTPS Message Receiver
 Immunization Message Transmiter
 Available for free use, source included
 Email: [email protected]
 Website: www.dt7.com/cdc