As part of developing a new reference set it should be created and identified as part of the Edition that it belongs to.

When creating a new reference set, the organization developing the reference set will need access to a namespace in order to generate SCTIds. Within their namespace, a moduleId concept (with an FSN and Preferred Term) should be added, placed in the subhierarchy within the metadata, for each authoring organization.

To specify any reference set it is necessary to identify the reference set by creating a concept and name the reference set by associated descriptions. The concepts should be a subtype of the relevant reference set type concept in the foundation metadata hierarchy. This could for example be as a descendant of the , or the . The latter is used for intensional reference set definitions. Following table shows the steps to follow when creating a new reference set.