Interoperability Proving Ground (IPG) submissions within the ONC Tech Lab are submitted by healthcare, technology and development organizations that are invested in Health IT and Interoperability and want to share, learn and collaborate with similar stakeholders in the US, and around the world.

To view all submissions, please view the IPG link located within the ONC Techlab.

Da Vinci Payer Data Exchange Formulary (PDEX Formulary)

This FHIR based Implementation Guide was developed by the Da Vinci Project in coordination with the HL7 Financial Management Workgroup. This guide defines a FHIR interface to a health insurer's drug formulary information for patients/consumers. A drug formulary is a list of brand-name and generic prescription drugs a health insurer agrees to pay for, at least partially, as part of health insurance coverage. Drug formularies are developed based on the efficacy, safety and cost of drugs.  The primary use cases for this FHIR interface enable consumers/patients to understand the costs and alternatives for drugs that have been prescribed, and to compare their drug costs across different insurance plans.

Noted by CMS:
Start Date
Projected End Date

Project Tags
  • Da Vinci Project
  • FHIR
  • Formulary
  • HL7
  • Payer-to-Provider
Project Point of Contact:
Project Results