{
  "resourceType" : "SearchParameter",
  "id" : "EraValiditySearchParameter",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: SearchParameter EraValiditySearchParameter</b></p><a name=\"EraValiditySearchParameter\"> </a><a name=\"hcEraValiditySearchParameter\"> </a><h2>validity</h2><p>Parameter <code>validity</code>:<code>date</code></p><div><p>Search parameter for list validity period in ERA FHIR server</p>\n</div><table class=\"grid\"><tr><td>Resource</td><td><a href=\"http://hl7.org/fhir/R4/list.html\">List</a></td></tr><tr><td>Expression</td><td><code>List.extension.where(url='http://hl7.org/fhir/StructureDefinition/resource-effectivePeriod').value.ofType(Period)</code></td></tr><tr><td>Multiples</td><td><ul><li>multipleAnd: The parameter may only appear once</li><li>multipleOr: The parameter may only have one value (no comma separators)</li></ul></td></tr></table></div>"
  },
  "url" : "https://eradocumentation.atostek.com/SearchParameter/validity",
  "version" : "1.0.0",
  "name" : "validity",
  "derivedFrom" : "http://hl7.org/fhir/StructureDefinition/resource-effectivePeriod",
  "status" : "draft",
  "experimental" : true,
  "date" : "2026-10-28T11:52:12+00:00",
  "publisher" : "Atostek",
  "contact" : [{
    "name" : "Atostek",
    "telecom" : [{
      "system" : "url",
      "value" : "https://atostek.com/"
    }]
  }],
  "description" : "Search parameter for list validity period in ERA FHIR server",
  "code" : "validity",
  "base" : ["List"],
  "type" : "date",
  "expression" : "List.extension.where(url='http://hl7.org/fhir/StructureDefinition/resource-effectivePeriod').value.ofType(Period)",
  "multipleOr" : false,
  "multipleAnd" : false
}