This code system http://terminology.hl7.org/CodeSystem/benefit-unit defines the following codes:

CodeDisplayDefinition
individual IndividualA single individual
family FamilyA family, typically includes self, spouse(s) and children to a defined age
 <status value="draft"/> <experimental value="false"/> <date value="2022-02-23T19:42:18-07:00"/> <publisher value="Financial Management"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="This value set includes a smattering of Unit type codes."/> <copyright value="This is an example set."/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/benefit-unit"/> <content value="complete"/> <concept> <code value="individual"/> <display value="Individual"/> <definition value="A single individual"/> </concept> <concept> <code value="family"/> <display value="Family"/> <definition value="A family, typically includes self, spouse(s) and children to a defined age"/> </concept> </CodeSystem>