iREX vs. T. Rex:Immunization Record Exchange

David John MarottaDT7 Softwarewww.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.

iREX Toolkit

Immunization Registry Exchange Message Trigger Message Encoding Message Transport Message Receipt Message Acknowledgement Message Parsing Message Handling

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)

Virtual Private Network (VPN)

Digital Certificates (DC)

This Proprietary SoftwareProduct Mandated By Our

State Legislature (TPSPMBOSL)

Encrypted FTP (eFTP)

Encrypted Email (eEMail)

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: cdc@dt7.com Website: www.dt7.com/cdc