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Source1

{
  "resourceType": "CodeSystem",
  "id": "search-modifier-code",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/valueset-oid",
      "valueUri": "urn:oid:2.16.840.1.113883.4.642.1.92"
    },
    {
      "extension": [
        {
          "url": "packageId",
          "valueId": "hl7.fhir.uv.xver-r2.r4"
        },
        {
          "url": "version",
          "valueString": "0.0.1-snapshot-2"
        }
      ],
      "url": "http://hl7.org/fhir/StructureDefinition/package-source"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 0,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    },
    {
      "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/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/search-modifier-code",
  "version": "1.0.2",
  "name": "search-modifier-code",
  "status": "draft",
  "date": "2025-09-13T15:01:03-04:00",
  "publisher": "FHIR Infrastructure",
  "contact": [
    {
      "name": "FHIR Infrastructure",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fiwg"
        }
      ]
    }
  ],
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "content": "complete",
  "property": [
    {
      "code": "status",
      "uri": "http://hl7.org/fhir/concept-properties#status",
      "type": "code"
    },
    {
      "code": "inactive",
      "uri": "http://hl7.org/fhir/concept-properties#inactive",
      "type": "boolean"
    },
    {
      "code": "effectiveDate",
      "uri": "http://hl7.org/fhir/concept-properties#effectiveDate",
      "type": "dateTime"
    },
    {
      "code": "deprecationDate",
      "uri": "http://hl7.org/fhir/concept-properties#deprecationDate",
      "type": "dateTime"
    },
    {
      "code": "retirementDate",
      "uri": "http://hl7.org/fhir/concept-properties#retirementDate",
      "type": "dateTime"
    },
    {
      "code": "notSelectable",
      "uri": "http://hl7.org/fhir/concept-properties#notSelectable",
      "type": "boolean"
    },
    {
      "code": "parent",
      "uri": "http://hl7.org/fhir/concept-properties#parent",
      "type": "code"
    },
    {
      "code": "child",
      "uri": "http://hl7.org/fhir/concept-properties#child",
      "type": "code"
    },
    {
      "code": "partOf",
      "uri": "http://hl7.org/fhir/concept-properties#partOf",
      "type": "code"
    },
    {
      "code": "synonym",
      "uri": "http://hl7.org/fhir/concept-properties#synonym",
      "type": "code"
    },
    {
      "code": "comment",
      "uri": "http://hl7.org/fhir/concept-properties#comment",
      "type": "string"
    },
    {
      "code": "itemWeight",
      "uri": "http://hl7.org/fhir/concept-properties#itemWeight",
      "type": "decimal"
    }
  ],
  "concept": [
    {
      "code": "missing",
      "display": "Missing",
      "definition": "The search parameter returns resources that have a value or not."
    },
    {
      "code": "exact",
      "display": "Exact",
      "definition": "The search parameter returns resources that have a value that exactly matches the supplied parameter (the whole string, including casing and accents)."
    },
    {
      "code": "contains",
      "display": "Contains",
      "definition": "The search parameter returns resources that include the supplied parameter value anywhere within the field being searched."
    },
    {
      "code": "not",
      "display": "Not",
      "definition": "The search parameter returns resources that do not contain a match ."
    },
    {
      "code": "text",
      "display": "Text",
      "definition": "The search parameter is processed as a string that searches text associated with the code/value - either CodeableConcept.text, Coding.display, or Identifier.type.text."
    },
    {
      "code": "in",
      "display": "In",
      "definition": "The search parameter is a URI (relative or absolute) that identifies a value set, and the search parameter tests whether the coding is in the specified value set."
    },
    {
      "code": "not-in",
      "display": "Not In",
      "definition": "The search parameter is a URI (relative or absolute) that identifies a value set, and the search parameter tests whether the coding is not in the specified value set."
    },
    {
      "code": "below",
      "display": "Below",
      "definition": "The search parameter tests whether the value in a resource is subsumed by the specified value (is-a, or hierarchical relationships)."
    },
    {
      "code": "above",
      "display": "Above",
      "definition": "The search parameter tests whether the value in a resource subsumes the specified value (is-a, or hierarchical relationships)."
    },
    {
      "code": "type",
      "display": "Type",
      "definition": "The search parameter only applies to the Resource Type specified as a modifier (e.g. the modifier is not actually :type, but :Patient etc.)."
    }
  ]
}