{
  "description": "Identifies the units of measure in which the element should be captured or expressed.",
  "_filename": "StructureDefinition-elementdefinition-allowedUnits.json",
  "package_name": "hl7.fhir.r2b.examples",
  "date": null,
  "derivation": "constraint",
  "publisher": "Health Level Seven, Inc. - FHIR Core WG",
  "fhirVersion": "1.6.0",
  "name": "Units to use for measured value",
  "mapping": [ {
    "uri": "http://hl7.org/v2",
    "name": "HL7 v2",
    "identity": "v2"
  }, {
    "uri": "http://hl7.org/v3",
    "name": "RIM",
    "identity": "rim"
  } ],
  "baseType": "Extension",
  "abstract": false,
  "type": null,
  "experimental": "false",
  "resourceType": "StructureDefinition",
  "title": null,
  "package_version": "1.4.0",
  "snapshot": {
    "element": [ {
      "path": "Extension",
      "min": 0,
      "definition": "Identifies the units of measure in which the element should be captured or expressed.",
      "isModifier": false,
      "short": "Units to use for measured value",
      "comments": "Use a value set if more than one unit of measure is possible.  Value sets will typically be short enough to display in a drop-down selection list.",
      "mapping": [ {
        "map": "OM2.2",
        "identity": "v2"
      }, {
        "map": "N/A (MIF territory)",
        "identity": "rim"
      } ],
      "mustSupport": false,
      "max": "1",
      "maxLength": 0,
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.id",
      "min": 0,
      "definition": "unique id for the element within a resource (for internal references).",
      "isModifier": false,
      "short": "xml:id (or equivalent in JSON)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "id"
      } ],
      "mustSupport": false,
      "representation": [ "xmlAttr" ],
      "max": "1",
      "maxLength": 0,
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension",
      "min": 0,
      "definition": "An Extension",
      "isModifier": false,
      "short": "Extension",
      "name": "extension",
      "type": [ {
        "code": "Extension"
      } ],
      "mustSupport": false,
      "max": "0",
      "maxLength": 0,
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits",
      "comments": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition should be version specific.  This will ideally be the URI for the Resource Profile defining the extension, with the code for the extension after a #.",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": false,
      "representation": [ "xmlAttr" ],
      "max": "1",
      "maxLength": 0,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "path": "Extension.value[x]",
      "min": 1,
      "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
      "isModifier": false,
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      }, {
        "code": "Reference",
        "profile": [ "http://hl7.org/fhir/StructureDefinition/ValueSet" ]
      } ],
      "mustSupport": false,
      "binding": {
        "strength": "required",
        "description": "Units of measure allowed for an element",
        "valueSetReference": {
          "reference": "http://hl7.org/fhir/ValueSet/uslab-units"
        }
      },
      "max": "1",
      "maxLength": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    } ]
  },
  "status": "draft",
  "id": "e94950c6-5ede-4a5f-8fda-e39d61b8ca51",
  "kind": "datatype",
  "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits",
  "context": [ "ElementDefinition" ],
  "version": null,
  "differential": {
    "element": [ {
      "path": "Extension",
      "min": 0,
      "definition": "Identifies the units of measure in which the element should be captured or expressed.",
      "isModifier": false,
      "short": "Units to use for measured value",
      "comments": "Use a value set if more than one unit of measure is possible.  Value sets will typically be short enough to display in a drop-down selection list.",
      "mapping": [ {
        "map": "OM2.2",
        "identity": "v2"
      }, {
        "map": "N/A (MIF territory)",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "mustSupport": false,
      "max": "1",
      "maxLength": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension",
      "min": 0,
      "isModifier": false,
      "name": "extension",
      "mustSupport": false,
      "max": "0",
      "maxLength": 0,
      "base": {
        "max": "0",
        "min": 0,
        "path": "Extension.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.url",
      "min": 0,
      "isModifier": false,
      "fixedUri": "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits",
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": false,
      "maxLength": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "path": "Extension.value[x]",
      "min": 1,
      "isModifier": false,
      "type": [ {
        "code": "CodeableConcept"
      }, {
        "code": "Reference",
        "profile": [ "http://hl7.org/fhir/StructureDefinition/ValueSet" ]
      } ],
      "mustSupport": false,
      "binding": {
        "strength": "required",
        "description": "Units of measure allowed for an element",
        "valueSetReference": {
          "reference": "http://hl7.org/fhir/ValueSet/uslab-units"
        }
      },
      "maxLength": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    } ]
  },
  "contact": [ {
    "telecom": [ {
      "rank": 1,
      "value": "http://hl7.org/special/committees/FHIR",
      "system": "other"
    } ]
  } ],
  "contextType": "datatype",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}