CodeSystemHierarchyMeaning

public enum CodeSystemHierarchyMeaning: String

The meaning of the hierarchy of concepts in a code system

URL: http://hl7.org/fhir/codesystem-hierarchy-meaning ValueSet: http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning

  • 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)

    Declaration

    Swift

    case groupedBy = "grouped-by"
  • isA

    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

    Declaration

    Swift

    case isA = "is-a"

  • Child elements list the individual parts of a composite whole (e.g. body site)

    Declaration

    Swift

    case partOf = "part-of"

  • 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.

    Declaration

    Swift

    case classifiedWith = "classified-with"