{
  "resourceType": "StructureDefinition",
  "id": "de-ElementDefinition.constraint.xpath",
  "meta": {
    "lastUpdated": "2019-02-10T00:11:08.953+00:00"
  },
  "url": "http://hl7.org/fhir/StructureDefinition/de-ElementDefinition.constraint.xpath",
  "version": "4.0.0",
  "name": "ElementDefinition.constraint.xpath",
  "title": "ElementDefinition.constraint.xpath",
  "status": "draft",
  "experimental": true,
  "date": "2019-02-10T00:11:08+00:00",
  "publisher": "HL7 FHIR Standard",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        }
      ]
    }
  ],
  "description": "Data Element for ElementDefinition.constraint.xpath",
  "purpose": "Data Elements are defined for each element to assist in questionnaire construction etc",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "v2",
      "uri": "http://hl7.org/v2",
      "name": "HL7 v2 Mapping"
    },
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    },
    {
      "identity": "iso11179",
      "uri": "http://metadata-standards.org/11179/",
      "name": "ISO 11179"
    },
    {
      "identity": "dex",
      "uri": "http://ihe.net/data-element-exchange",
      "name": "IHE Data Element Exchange (DEX)"
    },
    {
      "identity": "loinc",
      "uri": "http://loinc.org",
      "name": "LOINC code for the element"
    }
  ],
  "kind": "logical",
  "abstract": false,
  "type": "ElementDefinition.constraint.xpath",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Element",
  "derivation": "specialization",
  "snapshot": {
    "element": [
      {
        "id": "ElementDefinition.constraint.xpath",
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
            "valueCode": "trial-use"
          }
        ],
        "path": "ElementDefinition.constraint.xpath",
        "short": "XPath expression of constraint",
        "definition": "An XPath expression of constraint that can be executed to see if this constraint is met.",
        "comment": "Elements SHALL use \"f\" as the namespace prefix for the FHIR namespace, and \"x\" for the xhtml namespace, and SHALL NOT use any other prefixes.     Note: XPath is generally considered not useful because it does not apply to JSON and other formats and because of XSLT implementation issues, and may be removed in the future.",
        "requirements": "Used in Schematron tests of the validity of the resource.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "ElementDefinition.constraint.xpath",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "isModifier": false,
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A (MIF territory)"
          }
        ]
      }
    ]
  }
}