FHIR IG Statistics: StructureDefinition/real-simple

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Source

{
  "resourceType": "StructureDefinition",
  "id": "real-simple",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
      "valueUri": "urn:hl7-org:v3"
    },
    {
      "url": "http://hl7.org/fhir/tools/StructureDefinition/logical-container",
      "valueUri": "http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
      "valueCode": "has-range"
    }
  ],
  "url": "http://hl7.org/cda/stds/core/StructureDefinition/real-simple",
  "version": "1.0.0",
  "name": "real",
  "title": "real: Real Number",
  "status": "active",
  "experimental": false,
  "date": "2025-07-21T22:05:27+00:00",
  "publisher": "HL7",
  "description": "Fractional numbers. Typically used whenever quantities are measured, estimated, or computed from other real numbers.  The typical representation is decimal, where the number of significant decimal digits is known as the precision. Real numbers are needed beyond integers whenever quantities of the real world are measured, estimated, or computed from other real numbers. The term \"Real number\" in this specification is used to mean that fractional values are covered without necessarily implying the full set of the mathematical real numbers.",
  "fhirVersion": "5.0.0",
  "kind": "primitive-type",
  "abstract": false,
  "type": "decimal",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/decimal",
  "derivation": "constraint",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "5.0.0"
      }
    ],
    "element": [
      {
        "id": "decimal",
        "path": "decimal",
        "short": "Primitive Type decimal",
        "definition": "A rational number with implicit precision",
        "comment": "Do not use an IEEE type floating point type, instead use something that works like a true decimal, with inbuilt precision (e.g. Java BigInteger)",
        "min": 0,
        "max": "*",
        "base": {
          "path": "decimal",
          "min": 0,
          "max": "*"
        },
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier": false,
        "isSummary": false
      },
      {
        "id": "decimal.id",
        "path": "decimal.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references)",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "isModifier": false,
        "isSummary": false
      },
      {
        "id": "decimal.extension",
        "path": "decimal.extension",
        "short": "Extension",
        "definition": "An Extension",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false
      },
      {
        "id": "decimal.value",
        "path": "decimal.value",
        "representation": [
          "xmlAttr"
        ],
        "short": "Primitive value for decimal",
        "definition": "The actual value",
        "min": 0,
        "max": "1",
        "base": {
          "path": "decimal.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "decimal"
              },
              {
                "url": "http://hl7.org/fhir/StructureDefinition/regex",
                "valueString": "-?(0|[1-9][0-9]{0,17})(\\.[0-9]{1,17})?([eE][+-]?[0-9]{1,9}})?"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.Decimal"
          }
        ],
        "isModifier": false,
        "isSummary": false
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "decimal.id",
        "path": "decimal.id",
        "max": "0"
      },
      {
        "id": "decimal.extension",
        "path": "decimal.extension",
        "max": "0"
      }
    ]
  }
}