| Code | Display | Definition |
| patient-list | Patient-List | A list of patients for the purpose of some kind of clinical treatment. |
| family | Family | A group of persons and/or animals that constitute a family. The definition of family is not precisely fixed and subject to much variableness in interpretation. |
| household | Household | A group of persons and/or animals that reside in a singe house. Both the definitions of 'reside' and 'house' are not precisely fixed. |
| workplace | Workplace | A group of persons who work together in a single place. |
| event-attendee | Event Attendee | Group contains a set of persons and/or animals who were at the same place at the same time. This is typically used for an infection event |
| exposure-group | Exposure Group | Group contains a set of persons and/or animals who were exposed to some antigen or infectious agent. |
| herd | Herd | Group contains a set of animals that are treated as a coherent group. |
| locality | Locality | Group contains HealthcareService resources that are found in a single geographical location. |
| organization | Organization | A collection of healthcare services. |
| collection | Collection | A collection of entities for an arbitrary reason. |