FAQ

The following is a list of commonly asked questions from users of the Test Kit.

How does Inferno test US Core Encounter resource?

Inferno Encounter test is only concerned with references to Encounter resources that it knows MUST support the US Core Encounter profile. And it turns out that not all references to Encounter resources within other US Core profiles need to conform to the US Core Encounter profile. For an example of a reference to Reference(US Core Encounter), see US Core DiagnosticReport Note's encounter element. US Core DocumentReference's context.encounter is another example. If you place encounter references in one of those spots, you should start getting references that are tested in the Encounter test. Note: US Core has two profiles for DiagnosticReport. Only the DiagnosticReport Note profile mentioned above has US Core Encounter reference. The other profile (US Core DiangosticReport Lab Result) does NOT have US Core Encounter reference.

Q: How does Inferno test US Core Organization resource?

Similar to the Encounter test, Inferno Organization test is only concerned with references to Organization resources that it knows MUST support the US Core Organization profile. Here is a list of elements having reference to Reference(US Core Organization) in US Core v3.1.1:

• CareTeam.participant.member
• DiagnosticReport.performer
• DocumentReference.author
• MedicationRequest.requester
• Provenance.agent.who
• Provenance.agent.onBehalfOf

Q: What is the difference between "skipped" test and "omitted" test?

Inferno has four states for test result:

State	Meaning
Pass	Server response is valid for this test.
Omit	This test does not apply to the server due to server configuration. The pass or fail of a test sequence is not affected by omitted test.
Skip	Server response does not contain all necessary information, and Inferno can NOT complete the test to verify the server's behavior. Tester should provide additional data to continue the test. A test sequence is treated as failed if there is skipped test.
Fail	Server response is NOT valid for this test.

Q: How does Inferno test MustSupport flag on an element?

Inferno follows guidance provided by HL7 FHIR Conformance Rules and US Core IG General Guidance. Inferno checks that a server implementation SHALL demonstrate that it supports the "MustSupport" element in a meaningful way. In general, Inferno "MustSupport" tests check that each "MustSupport" element is present in at least one resource from all resources returned from the server. It is not necessary that one resource contain all MustSupport elements. Inferno does not consider using a "Data Absent Reason" (DAR) extension on a "MustSupport" element as supporting the element "in a meaningful way," so Inferno ignores elements with DAR extensions when looking for "MustSupport" elements.

Q: Why do some resources fail in US Core Test Kit with terminology validation errors?

US Core Test Suite depends on tx.fhir.org to do the terminology validation. This terminology server is not maintained by Inferno. If you get a terminology validation error in US Core Test Suite, please check the code against corresponding US Core value set. If you are certain the code is correct, please report the issue to Inferno Repository. We will investigate root cause of terminology failure. If it is determined that the error is on the terminology server, we will report the issue to terminology stream on Zulip.