http://hl7.org/fhir/permitted-data-type|4.0.1

{
  "description" : "Permitted data type for observation value.",
  "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" : "ObservationDataType",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "ObservationDataType",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "oo"
  }, {
    "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" : "cead4767-6cc8-5340-a90f-8f8ad24e06e1",
  "valueSet" : "http://hl7.org/fhir/ValueSet/permitted-data-type",
  "url" : "http://hl7.org/fhir/permitted-data-type",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.1332",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "concept" : [ {
    "code" : "Quantity",
    "display" : "Quantity",
    "definition" : "A measured amount."
  }, {
    "code" : "CodeableConcept",
    "display" : "CodeableConcept",
    "definition" : "A coded concept from a reference terminology and/or text."
  }, {
    "code" : "string",
    "display" : "string",
    "definition" : "A sequence of Unicode characters."
  }, {
    "code" : "boolean",
    "display" : "boolean",
    "definition" : "true or false."
  }, {
    "code" : "integer",
    "display" : "integer",
    "definition" : "A signed integer."
  }, {
    "code" : "Range",
    "display" : "Range",
    "definition" : "A set of values bounded by low and high."
  }, {
    "code" : "Ratio",
    "display" : "Ratio",
    "definition" : "A ratio of two Quantity values - a numerator and a denominator."
  }, {
    "code" : "SampledData",
    "display" : "SampledData",
    "definition" : "A series of measurements taken by a device."
  }, {
    "code" : "time",
    "display" : "time",
    "definition" : "A time during the day, in the format hh:mm:ss."
  }, {
    "code" : "dateTime",
    "display" : "dateTime",
    "definition" : "A date, date-time or partial date (e.g. just year or year + month) as used in human communication."
  }, {
    "code" : "Period",
    "display" : "Period",
    "definition" : "A time range defined by start and end date/time."
  } ],
  "caseSensitive" : true,
  "version" : "4.0.1",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://hl7.org/fhir",
      "system" : "url"
    }, {
      "value" : "fhir@lists.hl7.org",
      "system" : "email"
    } ]
  } ]
}