Draft dQM CMS Content Implementation Guide
2025.1.0 - CI Build

Draft dQM CMS Content Implementation Guide, published by cqframework. This guide is not an authorized publication; it is the continuous build for version 2025.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/cqframework/dqm-content-cms-2025/ and changes regularly. See the Directory of published versions

: NHSNHelpers - JSON Representation

Draft as of 2026-09-19

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{
  "resourceType" : "Library",
  "id" : "NHSNHelpers",
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n  <table class=\"narrative-table\">\n    <tbody>\n<tr>\n\n\n<th colspan=\"2\" scope=\"row\" class=\"row-header\"><a name=\"metadata\"> </a>Metadata</th>\n\n\n</tr>\n\n\n\n\n\n\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Version</th>\n\n\n\n<td class=\"content-container\">1.1.000</td>\n\n\n</tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Status</th>\n\n\n\n<td class=\"content-container\">Draft</td>\n\n\n</tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Type</th>\n\n\n\n<td class=\"content-container\">\n    <a href=\"http://terminology.hl7.org/7.1.0/CodeSystem-library-type.html\">http://terminology.hl7.org/CodeSystem/library-type</a>#logic-library\n\n\n</td>\n\n\n</tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n<tr>\n\n\n<th colspan=\"2\" scope=\"row\" class=\"row-header\"><a name=\"parameters\"> </a>Parameters</th>\n\n\n</tr>\n\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Parameter</th>\n\n\n\n<td class=\"content-container\">None</td>\n\n\n</tr>\n\n\n\n\n\n\n\n\n  <tr>\n\n\n<th colspan=\"2\" scope=\"row\" class=\"row-header\">Library Content</th>\n\n\n</tr>\n  \n    \n    <tr>\n      <th scope=\"row\" class=\"row-header\">CQL Content</th>\n      <td>\n        <a name=\"cql-content\"> </a>\n        <pre style=\"border: none;\" class=\"content-container highlight language-cql\"><code class=\"language-cql\">/*\nNOTE: For use by March 2026 US Realm Connectathon participants for internal use only. Not for use or distribution in commercial products.\n*/\nlibrary NHSNHelpers version '1.1.000'\n\nusing FHIR version '4.0.1'\n\ninclude hl7.fhir.uv.cql.FHIRHelpers version '4.0.1' called FHIRHelpers\n\ncontext Patient\n\n/* NOTE: Available in FHIRCommon already\ndefine function &quot;Normalize Interval&quot;(choice Choice&lt;FHIR.dateTime, FHIR.Period, FHIR.Timing, FHIR.instant, FHIR.string, FHIR.Age, FHIR.Range&gt;):\n  case\n\t  when choice is FHIR.dateTime then\n    \tInterval[FHIRHelpers.ToDateTime(choice as FHIR.dateTime), FHIRHelpers.ToDateTime(choice as FHIR.dateTime)]\n\t\twhen choice is FHIR.Period then\n  \t\tFHIRHelpers.ToInterval(choice as FHIR.Period)\n\t\twhen choice is FHIR.instant then\n\t\t\tInterval[FHIRHelpers.ToDateTime(choice as FHIR.instant), FHIRHelpers.ToDateTime(choice as FHIR.instant)]\n\t\twhen choice is FHIR.Age then\n\t\t  Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(choice as FHIR.Age),\n\t\t\t  FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(choice as FHIR.Age) + 1 year)\n\t\twhen choice is FHIR.Range then\n\t\t  Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((choice as FHIR.Range).low),\n\t\t\t  FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((choice as FHIR.Range).high) + 1 year)\n\t\twhen choice is FHIR.Timing then\n\t\t  Message(null as Interval&lt;DateTime&gt;, true, '1', 'Error', 'Cannot compute a single interval from a Timing type')\n    when choice is FHIR.string then\n      Message(null as Interval&lt;DateTime&gt;, true, '1', 'Error', 'Cannot compute an interval from a String value')\n\t\telse\n\t\t\tnull as Interval&lt;DateTime&gt;\n\tend\n     \ndefine function &quot;ToDateInterval&quot;(period FHIR.Period):\n Interval[date from period.start, date from period.end]\n*/\n\n/* NOTE: Moved to USQualityCoreCommon\ndefine function &quot;GetLocation&quot;(reference Reference ):\nsingleton from ([Location] Locations\nwhere Locations.id = GetId(reference.reference)\n)\n\ndefine function &quot;GetId&quot;(uri String ):\nLast(Split(uri, '/'))\n*/</code></pre>\n      </td>\n    </tr>\n    \n  \n\n\n\n<tr>\n  <th colspan=\"2\" scope=\"row\" class=\"row-header\">Generated using version 0.5.6 of the sample-content-ig Liquid templates</th>\n</tr>\n\n    </tbody>\n  </table>\n</div>"
  },
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/uv/crmi/StructureDefinition/crmi-softwaresystem",
      "valueReference" : {
        "reference" : "Device/cqf-tooling"
      }
    }
  ],
  "url" : "https://madie.cms.gov/Library/NHSNHelpers",
  "version" : "1.1.000",
  "name" : "NHSNHelpers",
  "status" : "draft",
  "type" : {
    "coding" : [
      {
        "system" : "http://terminology.hl7.org/CodeSystem/library-type",
        "code" : "logic-library"
      }
    ]
  },
  "date" : "2026-09-19T16:31:14+00:00",
  "content" : [
    {
      "contentType" : "text/cql",
      "data" : "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",
      "url" : "https://madie.cms.gov/Library-NHSNHelpers.cql"
    }
  ]
}