eHealth Exchange

Largest US HIE network, designated QHIN in 2023.

Definition

Originated as NHIN (Nationwide Health Information Network) ONC pilot 2008, transferred to The Sequoia Project 2012, renamed eHealth Exchange. Uses IHE XCPD, XCA, XDR over SOAP, and migrating to FHIR R4 for TEFCA. 130M+ patients covered.

Origin

NHIN ONC pilot 2008, transferred to The Sequoia Project 2012, TEFCA QHIN designation December 2023.

Usage

Treatment + Public Health exchange (CDC, FDA), Disability Determination Services (SSA), Veterans Affairs DoD. Essential for routing veteran/military records.

Related terms

• QHIN — cadre TEFCA.
• Sequoia Project — opérateur.
• NHIN — origine historique.