http://hl7.org/fhir/search-modifier-code|4.0.1

{
  "description" : "A supported modifier for a search parameter.",
  "compose" : null,
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "date" : "2019-10-31T22:29:23Z",
  "meta" : {
    "lastUpdated" : "2019-11-01T09:29:23.356+11:00"
  },
  "publisher" : "HL7 (FHIR Project)",
  "content" : "complete",
  "name" : "SearchModifierCode",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "SearchModifierCode",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }, {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use"
  }, {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 3
  } ],
  "status" : "draft",
  "id" : "0a56f0ee-cc6a-5440-bec0-913b86924807",
  "valueSet" : "http://hl7.org/fhir/ValueSet/search-modifier-code",
  "url" : "http://hl7.org/fhir/search-modifier-code",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.640",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "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.)."
  }, {
    "code" : "identifier",
    "display" : "Identifier",
    "definition" : "The search parameter applies to the identifier on the resource, not the reference."
  }, {
    "code" : "ofType",
    "display" : "Of Type",
    "definition" : "The search parameter has the format system|code|value, where the system and code refer to an Identifier.type.coding.system and .code, and match if any of the type codes match. All 3 parts must be present."
  } ],
  "caseSensitive" : true,
  "version" : "4.0.1",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://hl7.org/fhir",
      "system" : "url"
    }, {
      "value" : "fhir@lists.hl7.org",
      "system" : "email"
    } ]
  } ]
}