Inferno on HealthIT.gov

HL7® FHIR® Testing by The Office of the National Coordinator for Health IT

Inferno on HealthIT.gov is a public service for running select FHIR conformance tests built with Inferno. This includes tests relevant to the ONC Health IT Certification Program and tests that target other popular FHIR Implementation Guides.

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ONC Health Certification Program

Evaluate a publicly accessible test server to the ONC (g)(10) Standardized API Certification Criterion using this public testing instance of Inferno.

ONC (g)(10) Standardized Test Kit

What is Inferno?

Open Source FHIR Testing

Inferno is an open source tool for creating, executing and sharing automated conformance tests for the FHIR Standard. Inferno on HealthIT.gov hosts several tests created with Inferno, but Inferno is designed so anyone can create and host their own tests.

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Inferno on HealthIT.gov is a public host for the (g)(10) Standardized API Test Kit, which is an approved test method for the §170.315(g)(10) criterion within the ONC Certification Program. It also contains tests for several popular FHIR Implementation Guides. Browse the Test Kit page for a list of tests that are currently available.

Create your own tests

Inferno is as flexible as the FHIR standard, and tests need to be created for each unique FHIR use case. The Inferno Framework provides tools and common approaches to testing systems for FHIR conformance. Visit the Inferno Framework Documentation Site to learn more.

Run your own Inferno Instance

Inferno makes it easy to run tests on your local machine or host a shared copy behind your firewall. Inferno tests are packaged in Test Kits, which are standalone applications tuned to Implementation Guide or certification criteria. Each Test Kit on Inferno on HealthIT.gov provides a link to its repository where you can learn how to download and run it locally.

Integrate with Inferno

Inferno's user interface is powered by an open, full-featured API to enable integration into external tools or continuous integration pipelines. Learn more in the Inferno Framework Documentation Site.

Additional Tools

Comprehensive testing solutions need more than just tests. Inferno provides additional utilities, such as Reference Applications, that can be optionally integrated alongside tests within Inferno Test Kits.

News and Updates

September 2026 Updates

September 9, 2026

The Inferno team released and deployed to Inferno on HealthIT.gov several significant updates, including

New client and server suites for the v2.2.0 version of the IG in the Da Vinci Documentation Templates and Rules (DTR) Test Kit.
Updates and fixes to the v2.2.1 client and server suites in the Da Vinci Coverage Requirements Discovery (CRD) Test Kit and Da Vinci Coverage Requirements Discovery (PAS) Test Kit.
A critical fix for all test kits using validator message filters from the US Core Server v6.1.0 suite in the US Core Test Kit. A bug in validator issue filtering previously caused some legitimate errors to be filtered. Now these errors will be returned and some systems that previously passed may now fail the tests due to this change. This fix impacts the following test kits:
- US Core Test Kit when using the “US Core Server v6.1.0” suite.
- ONC Certification (g)(10) Standardized API Test Kit when using the “US Core 6.1.0 / USCDI v3” option.
- Da Vinci Coverage Requirements Discovery (CRD) Test Kit when using the “Da Vinci CRD Client v2.2.1 Test Suite” and using the “US Core 6.1.0” option.

DRAFT 45 CFR 170.315(g)(31) Inferno Test Kit

September 9, 2026

Inferno on HealthIT.gov’s QA server has been updated to include a DRAFT ONC Certification (g)(31) Standardized API Test Kit which will be used in the future to certify Health IT Modules against ONC’s §170.315(g)(31) Provider prior authorization API – coverage requirements discovery criteria. This release of the test kit is a draft which is not yet ready for use for certification. Implementers attending the September HL7 Connectathon are encouraged to try the tests out and provide feedback via GitHub Issues before the certification-ready release planned for October 2026.

US Quality Core Test Kit Added

July 13, 2026

Inferno on HealthIT.gov has been updated to include the US Quality Core Test Kit, which validates server and client implementations against the 2026 US Quality Core Implementation Guide v0.5.0. The US Quality Core IG defines FHIR API expectations for exchanging USCDI+ Quality V1 data and is intended to support quality measurement and related health IT workflows.

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