Use Case
Clinical Data Exchange (CDex)
Enables clinical data exchange between providers and payers for claim attachments, prior authorization, additional documentation to support medical necessity, quality programs and risk adjustment

You are already doing this today, why not make it easier?
Providers have been responding to payer requests for additional clinical information for decades, but without using national standards backed by a multi-party trust agreement.
The hard way
Providers succumb to each payer’s preferred method to submit the required information, creating a multitude of manual back-and-forth information requests via
- Web portals
- Fax
- Phone calls
- Snail mail
Creating inefficient processes that create strain on administrative staff
The new way
Implementation of HL7® Da Vinci CDex automates clinical data exchange between payers and providers using FHIR® standards.
eHealth Exchange further simplifies the process by allowing payers to connect with multiple providers and providers to connect with multiple payers using our single trust agreement, like our DURSA.

Exchange with confidence
HL7 Da Vinci’s technical specifications have been designed by providers and payers to standardize provider-payer clinical exchange.
- Payers can only retrieve data for attributed members when they share full demographics.
- Providers consent to exchange when they are satisfied HIPAA Minimum Necessary has been addressed. This is often solved by payers retrieving data only for each date-based encounter.
Let us show you how it works

Connecting payers and providers
We provide a single nationwide legal agreement with one technical connection for you to connect to providers, federal agencies, health information exchanges, and other payers enabling a simplified information exchange process and a proven SMART-on-FHIR approach to payer APIs.
With eHealth Exchange, you can:
Streamline and automate prior authorization decisions and provide real-time determinations.
Expediate medical reviews with on-demand access to clinical documentation to support the claims process.
Reduce administrative burden by minimizing the back-and-forth information requests.
Support care coordination and value-based care determinations.
Increase compliance with federal regulations for payer interoperability.
Prepare for TEFCA with CDex
TEFCA™ exchange for Care Coordination/Case Management, HEDIS Reporting and Quality Measure Reporting (Health Care Operations) is currently optional, but scheduled to be a required response in early 2026 as referenced in Exchange Purposes v4.

Technical Specifications
Da Vinci Clinical Data Exchange (CDex)
CDex Task Data Request Profile
CDex Purpose of Use Value Set
SMART App Launch
US Core Implementation Guide
Da Vinci Health Record Exchange (HRex)
Now is the time to abandon manual and disjointed workflows.
Expand your access and connectivity to the U.S. healthcare system with eHealth Exchange