http://hl7.org/fhir/CodeSystem/measure-aggregate-method|5.0.0

{
  "description" : "Aggregation method for a measure (e.g. sum, average, median, minimum, maximum, count)",
  "compose" : null,
  "package" : "hl7.fhir.r5.core@5.0.0",
  "date" : "2019-03-15T05:21:03Z",
  "meta" : {
    "profile" : [ "http://hl7.org/fhir/StructureDefinition/shareablecodesystem" ],
    "lastUpdated" : "2023-03-26T15:21:02.749+11:00"
  },
  "publisher" : "Clinical Quality Information WG",
  "jurisdiction" : [ {
    "coding" : [ {
      "code" : "001",
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "display" : "World"
    } ]
  } ],
  "content" : "complete",
  "name" : "MeasureAggregateMethod",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "Measure Aggregate Method",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cqi"
  } ],
  "status" : "active",
  "id" : "7c7f42f4-fcac-5ebc-9131-328494531144",
  "valueSet" : "http://hl7.org/fhir/ValueSet/aggregate-method",
  "url" : "http://hl7.org/fhir/CodeSystem/measure-aggregate-method",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.2044",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "concept" : [ {
    "code" : "sum",
    "display" : "Sum",
    "definition" : "The measure score is determined by adding together the observations derived from the measure population."
  }, {
    "code" : "average",
    "display" : "Average",
    "definition" : "The measure score is determined by taking the average of the observations derived from the measure population."
  }, {
    "code" : "median",
    "display" : "Median",
    "definition" : "The measure score is determined by taking the median of the observations derived from the measure population."
  }, {
    "code" : "minimum",
    "display" : "Minimum",
    "definition" : "The measure score is determined by taking the minimum of the observations derived from the measure population."
  }, {
    "code" : "maximum",
    "display" : "Maximum",
    "definition" : "The measure score is determined by taking the maximum of the observations derived from the measure population."
  }, {
    "code" : "count",
    "display" : "Count",
    "definition" : "The measure score is determined as the number of observations derived from the measure population."
  } ],
  "caseSensitive" : true,
  "version" : "5.0.0",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://www.hl7.org/Special/committees/cqi/index.cfm",
      "system" : "url"
    } ]
  } ]
}