The specification states “Since screenings and assessments are not unique to social needs, US Core 6.0.0+ Profiles and the FHIR RESTful interactions documented below span across use cases and thus are less constrained and form the backbone for the Clinical Care Profiles. They provide a general framework for all domains which use screenings are assessments” and lists a few classes including SDOH, function status, etc. It is appropriate that US Core is providing the base line across use cases, however, this can cause confusion if there are profiles in US Core and profiles in other IGs that cover similar spaces. Implementers might not know when to use which one, and since US Core is so well known, implementers may just default to it. US Core should suggest when it is proper to use the US Core profiles versus using a specialized IG like Gravity. There should be a statement that the use of the more constrained domain specific profiles should be considered to meet the needs of their respective use cases.