http://build.fhir.org/ig/HL7/fhir-qi-core/index.html#relationship-between-quick-the-qi-core-profiles-and-fhir
Now that the QUICK tab has been removed in favor of the new Details tab for all MUST SUPPORT items, the language in this section is inappropriate. Basically, the concept of QUICK exists but there is no QUICK availability in the QI-Core publication or elsewhere.

Suggest the following language change (new language in italics):
"The QUICK logical model was originally developed without reference to FHIR. However, when it became clear that FHIR would be the focus of interoperability efforts in HL7, it no longer made sense for the quality improvement community to maintain its own model of clinical information, for example, having a procedure model with different attributes than the FHIR procedure resource. The decision was made by the CDS and CQI working groups to align QUICK with FHIR, and use the FHIR resources to define the QUICK model. This decision means that QUICK benefits from all the thought and effort being put into FHIR, and stays in synchronization with the development and evolution of FHIR.

Using FHIR to define the QUICK logical model seems to reverse the usual flow from conceptual model to logical model to physical model. This is true, and has been the source of some controversy. Without revisiting that debate, the bottom line is whether the QUICK model has the right set of objects and attributes that are needed for quality improvement applications. To assure that QUICK does meet those requirements, the QI-Core profiles were created. QI-Core fills any gaps such as missing attributes and unspecified value sets that might make QUICK insufficient for quality improvement applications.

_The QUICK tab previously included in QI-Core publications (through QI-Core 4.0) has been retired. That tab basically provided the Must Support content of each QI-Core profile to assist measure and CDS artifact authoring. The content of that tab is now available directly in the publication tooling, adding a new tab in the detail section that lists all of the Must Support items for each profile: Snapshot Table (Must Support). Work on profile authoring using QI-Core and other FHIR IG profiles continues and will be made available in the future.

Continued discussion of the original concept of QUICK as a conceptual data model will progress with consideration of the Observational Medical Outcomes Partnership (OMOP) data model._"