This is the CodeSystem that contains codes in both UsageContextRORCodeSystem (https://interop.esante.gouv.fr/ig/fhir/ror/CodeSystem/usage-context-ror-codesystem) and UsageContextRORCodeSystem (https://interop.esante.gouv.fr/ig/fhir/ror/CodeSystem/usage-context-ror-codesystem).