<status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><publisher value="HL7 International / Terminology Infrastructure"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom></contact><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/Vocab/index.cfm"/></telecom></contact><description value="The meaning of the hierarchy of concepts in a code system."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning"/><content value="complete"/><concept><code value="grouped-by"/><display value="Grouped By"/><definition value="No particular relationship between the concepts can be assumed, except what can be determined by inspection of the definitions of the elements (possible reasons to use this: importing from a source where this is not defined, or where various parts of the hierarchy have different meanings)."/></concept><concept><code value="is-a"/><display value="Is-A"/><definition value="A hierarchy where the child concepts have an IS-A relationship with the parents - that is, all the properties of the parent are also true for its child concepts. Not that is-a is a property of the concepts, so additional subsumption relationships may be defined using properties."/></concept><concept><code value="part-of"/><display value="Part Of"/><definition value="Child elements list the individual parts of a composite whole (e.g. body site)."/></concept><concept><code value="classified-with"/><display value="Classified With"/><definition value="Child concepts in the hierarchy may have only one parent, and there is a presumption that the code system is a "closed world" meaning all things must be in the hierarchy. This results in concepts such as "not otherwise classified."."/></concept></CodeSystem>

Generated Narrative: CodeSystem codesystem-hierarchy-meaning

This case-sensitive code system http://hl7.org/fhir/codesystem-hierarchy-meaning defines the following codes:

Code	Display	Definition
grouped-by	Grouped By	No particular relationship between the concepts can be assumed, except what can be determined by inspection of the definitions of the elements (possible reasons to use this: importing from a source where this is not defined, or where various parts of the hierarchy have different meanings).
is-a	Is-A	A hierarchy where the child concepts have an IS-A relationship with the parents - that is, all the properties of the parent are also true for its child concepts. Not that is-a is a property of the concepts, so additional subsumption relationships may be defined using properties.
part-of	Part Of	Child elements list the individual parts of a composite whole (e.g. body site).
classified-with	Classified With	Child concepts in the hierarchy may have only one parent, and there is a presumption that the code system is a "closed world" meaning all things must be in the hierarchy. This results in concepts such as "not otherwise classified.".