http://hl7.org/fhir/group-measure|4.0.1

{
  "description" : "Possible group measure aggregates (E.g. Mean, Median).",
  "compose" : null,
  "package" : "hl7.fhir.r4.core@4.0.1",
  "date" : "2019-10-31T22:29:23Z",
  "meta" : {
    "lastUpdated" : "2019-11-01T09:29:23.356+11:00"
  },
  "publisher" : "HL7 (FHIR Project)",
  "content" : "complete",
  "name" : "GroupMeasure",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "GroupMeasure",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  }, {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use"
  }, {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 0
  } ],
  "status" : "draft",
  "id" : "cd1e17b2-963f-5d03-9b0a-6d7e8a7b67e2",
  "valueSet" : "http://hl7.org/fhir/ValueSet/group-measure",
  "url" : "http://hl7.org/fhir/group-measure",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.1346",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "concept" : [ {
    "code" : "mean",
    "display" : "Mean",
    "definition" : "Aggregated using Mean of participant values."
  }, {
    "code" : "median",
    "display" : "Median",
    "definition" : "Aggregated using Median of participant values."
  }, {
    "code" : "mean-of-mean",
    "display" : "Mean of Study Means",
    "definition" : "Aggregated using Mean of study mean values."
  }, {
    "code" : "mean-of-median",
    "display" : "Mean of Study Medins",
    "definition" : "Aggregated using Mean of study median values."
  }, {
    "code" : "median-of-mean",
    "display" : "Median of Study Means",
    "definition" : "Aggregated using Median of study mean values."
  }, {
    "code" : "median-of-median",
    "display" : "Median of Study Medians",
    "definition" : "Aggregated using Median of study median values."
  } ],
  "caseSensitive" : true,
  "version" : "4.0.1",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://hl7.org/fhir",
      "system" : "url"
    }, {
      "value" : "fhir@lists.hl7.org",
      "system" : "email"
    } ]
  } ]
}