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FHIR IG Statistics: StructureDefinition/CDSHookServiceResponseExtensionIfNoneExist

Packagehl7.fhir.us.davinci-crd
TypeStructureDefinition
IdCDSHookServiceResponseExtensionIfNoneExist
FHIR VersionR4
Sourcehttp://hl7.org/fhir/us/davinci-crd/https://build.fhir.org/ig/HL7/davinci-crd/StructureDefinition-CDSHookServiceResponseExtensionIfNoneExist.html
URLhttp://hl7.org/fhir/us/davinci-crd/StructureDefinition/CDSHookServiceResponseExtensionIfNoneExist
Version2.2.0-ballot
Statusactive
Date2025-07-22T17:00:27+00:00
NameCDSHookServiceResponseExtensionIfNoneExist
TitleCDS Hooks Service Response If-None-Exist Extension
Realmus
Authorityhl7
DescriptionIndicates a value to assert as an if-none-exist header on a create or update action
Typestring
Kindprimitive-type

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Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: StructureDefinition CDSHookServiceResponseExtensionIfNoneExist

NameFlagsCard.TypeDescription & Constraintsdoco
.. string 0..1stringif-none-exist header value
JSON Property Name for Type: davinci-crd.if-none-exist

doco Documentation for this format

Source

{
  "resourceType": "StructureDefinition",
  "id": "CDSHookServiceResponseExtensionIfNoneExist",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fm"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 3,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/us/davinci-crd/ImplementationGuide/davinci-crd"
          }
        ]
      }
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use",
      "_valueCode": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/us/davinci-crd/ImplementationGuide/davinci-crd"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/us/davinci-crd/StructureDefinition/CDSHookServiceResponseExtensionIfNoneExist",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.40.18.42.22"
    }
  ],
  "version": "2.2.0-ballot",
  "name": "CDSHookServiceResponseExtensionIfNoneExist",
  "title": "CDS Hooks Service Response If-None-Exist Extension",
  "status": "active",
  "experimental": false,
  "date": "2025-07-22T17:00:27+00:00",
  "publisher": "HL7 International / Financial Management",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fm"
        }
      ]
    }
  ],
  "description": "Indicates a value to assert as an if-none-exist header on a create or update action",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "urn:iso:std:iso:3166",
          "code": "US"
        }
      ]
    }
  ],
  "fhirVersion": "4.0.1",
  "kind": "primitive-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "CDSHooksResponse.cards.suggestions.actions"
    }
  ],
  "type": "string",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/string",
  "derivation": "constraint",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "4.0.1"
      }
    ],
    "element": [
      {
        "id": "string",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-name",
            "valueString": "davinci-crd.if-none-exist"
          }
        ],
        "path": "string",
        "short": "if-none-exist header value",
        "definition": "Indicates a value to assert as an if-none-exist header on a create or update action",
        "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
        "min": 0,
        "max": "1",
        "base": {
          "path": "string",
          "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())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier": false,
        "isSummary": false
      },
      {
        "id": "string.id",
        "path": "string.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": "1",
        "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": "string.extension",
        "path": "string.extension",
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "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())",
            "xpath": "@value|f:*|h:div",
            "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()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false
      },
      {
        "id": "string.value",
        "path": "string.value",
        "representation": [
          "xmlAttr"
        ],
        "short": "Primitive value for string",
        "definition": "The actual value",
        "min": 0,
        "max": "1",
        "base": {
          "path": "string.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              },
              {
                "url": "http://hl7.org/fhir/StructureDefinition/regex",
                "valueString": "[ \\r\\n\\t\\S]+"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "maxLength": 1048576,
        "isModifier": false,
        "isSummary": false
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "string",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-name",
            "valueString": "davinci-crd.if-none-exist"
          }
        ],
        "path": "string",
        "short": "if-none-exist header value",
        "definition": "Indicates a value to assert as an if-none-exist header on a create or update action",
        "max": "1"
      }
    ]
  }
}