dQM QICore Content Implementation Guide
2026.0.0 - CI Build
dQM QICore Content Implementation Guide
2026.0.0 - CI Build
dQM QICore Content Implementation Guide, published by cqframework. This guide is not an authorized publication; it is the continuous build for version 2026.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/cqframework/dqm-content-qicore-2026/ and changes regularly. See the Directory of published versions
| Page standards status: Informative | Maturity Level: 1 |
{
"resourceType" : "Library",
"id" : "StratificationEncounterExample",
"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\">Metadata</th>\n\n\n</tr>\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Title</th>\n\n\n\n<td class=\"content-container\">Stratification Encounter Example</td>\n\n\n</tr>\n\n\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Version</th>\n\n\n\n<td class=\"content-container\">2026.0.0</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\">Topic</th>\n\n\n\n<td class=\"content-container\">FHIR\n</td>\n\n\n</tr>\n\n<tr>\n\n\n<th scope=\"row\" class=\"row-header\">Topic</th>\n\n\n\n<td class=\"content-container\">CQL\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 scope=\"row\" class=\"row-header\">Description</th>\n\n\n\n<td class=\"content-container\"><div><p>StratificationEncounterExample logic.</p>\n</div></td>\n\n\n</tr>\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 logic-library from <a href=\"http://terminology.hl7.org/7.0.1/CodeSystem-library-type.html\">http://terminology.hl7.org/CodeSystem/library-type</a> \n\n\n</td>\n\n\n</tr>\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\">library StratificationEncounterExample\n\nusing FHIR version '4.0.1'\n\ninclude hl7.fhir.uv.cql.FHIRHelpers version '4.0.1'\ninclude hl7.fhir.uv.cql.FHIRCommon version '2.0.0'\n\ninclude PatientCommon\n\nparameter "Measurement Period" Interval<DateTime>\n default Interval[@2026-01-01T00:00:00.000Z, @2027-01-01T00:00:00.000Z)\n\ncontext Patient\n\ndefine "Well-Visit Encounter":\n [Encounter] E\n where E.status = 'finished'\n and E.period ends during day of "Measurement Period"\n\ndefine "Blood Pressure Observation":\n [Observation] O\n where O.status in { 'final', 'amended', 'corrected' }\n and O.issued during day of "Measurement Period"\n\ndefine "Initial Population":\n "Well-Visit Encounter"\n\ndefine "Denominator":\n "Well-Visit Encounter"\n\ndefine "Numerator":\n "Well-Visit Encounter" E\n with "Blood Pressure Observation" O\n such that O.issued during E.period\n\n/* Criteria-based Stratification */\n\ndefine "Stratifier P0Y--P21Y":\n "Well-Visit Encounter" E\n where Patient.ageInYearsAt(end of E.period) between 0 and 20\n\ndefine "Stratifier P21Y--P41Y":\n "Well-Visit Encounter" E\n where Patient.ageInYearsAt(end of E.period) between 21 and 40\n\ndefine "Stratifier P41Y--P9999Y":\n "Well-Visit Encounter" E\n where Patient.ageInYearsAt(end of E.period) >= 41\n\n/* \n Value-based Stratification \n \n Note that for value-based stratification of a non-subject-based measure, \n the expression may be a definition as "Gender Stratifier", or a function \n as "Age Range Stratifier"(Encounter)\n*/\n\ndefine function "Gender Stratifier":\n Patient.gender\n\ndefine function "Age Range Stratifier"(encounter Encounter):\n case\n when Patient.ageInYearsAt(start of encounter.period) between 0 and 20 then 'P0Y--P21Y'\n when Patient.ageInYearsAt(start of encounter.period) between 21 and 40 then 'P21Y--P41Y'\n when Patient.ageInYearsAt(start of encounter.period) >= 41 then 'P41Y--P9999Y'\n else null\n end\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 0.5.0 of the sample-content-ig Liquid templates</th>\n</tr>\n\n </tbody>\n </table>\n</div>"
},
"extension" : [
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 1
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "cds"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode" : "informative"
}
],
"url" : "https://madie.cms.gov/Library/StratificationEncounterExample",
"version" : "2026.0.0",
"name" : "StratificationEncounterExample",
"title" : "Stratification Encounter Example",
"status" : "active",
"experimental" : false,
"type" : {
"coding" : [
{
"system" : "http://terminology.hl7.org/CodeSystem/library-type",
"code" : "logic-library"
}
]
},
"date" : "2026-02-05T16:14:32+00:00",
"description" : "StratificationEncounterExample logic.",
"topic" : [
{
"text" : "FHIR"
},
{
"text" : "CQL"
}
],
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{
"contentType" : "text/cql",
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