Clinical Practice Guidelines
2.0.0 - STU2
Clinical Practice Guidelines
2.0.0 - STU2
Clinical Practice Guidelines, published by HL7 International / Clinical Decision Support. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cqf-recommendations/ and changes regularly. See the Directory of published versions
| Active as of 2026-04-29 |
<Measure xmlns="http://hl7.org/fhir">
<id value="chf-bodyweight-change-measure"/>
<meta>
<profile
value="http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-computablemetric"/>
</meta>
<language value="en"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml">
<table class="narrative-table">
<tbody>
<tr>
<th colspan="2" scope="row" class="row-header">Metadata</th>
</tr>
<tr>
<th scope="row" class="row-header">Title</th>
<td class="content-container">CHF Body Weight Change Metric</td>
</tr>
<tr>
<th scope="row" class="row-header">Version</th>
<td class="content-container">2.0.0</td>
</tr>
<tr>
<th scope="row" class="row-header">Identifier</th>
<td class="content-container">urn:oid:2.16.840.1.113883.4.642.40.48.29.2</td>
</tr>
<tr>
<th scope="row" class="row-header">Experimental</th>
<td class="content-container">true</td>
</tr>
<tr>
<th scope="row" class="row-header">Jurisdiction</th>
<td class="content-container">
World
</td>
</tr>
<tr>
<th scope="row" class="row-header">Steward (Publisher)</th>
<td class="content-container">HL7 International / Clinical Decision Support</td>
</tr>
<tr>
<th scope="row" class="row-header">Steward Contact</th>
<td class="content-container">HL7 International / Clinical Decision Support</td>
</tr>
<tr>
<th scope="row" class="row-header">Description</th>
<td class="content-container"><div><p>Body weight change metric as a feature of a congestive heart failure pathway</p>
</div></td>
</tr>
<tr>
<th scope="row" class="row-header">Measure Scoring</th>
<td class="content-container">
continuous-variable from <a href="http://terminology.hl7.org/7.1.0/CodeSystem-measure-scoring.html">http://terminology.hl7.org/CodeSystem/measure-scoring</a>
</td>
</tr>
<tr>
<th scope="row" class="row-header">Improvement Notation</th>
<td class="content-container">
decrease from <a href="http://terminology.hl7.org/7.1.0/CodeSystem-measure-improvement-notation.html">http://terminology.hl7.org/CodeSystem/measure-improvement-notation</a>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header">Measure Group (Rate)</th>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header">Measure Logic</th>
</tr>
<tr>
<th scope="row" class="row-header">Primary Library</th>
<td class="content-container"><a href="Library-CHF.html">CHF</a></td>
</tr>
<tr>
<th scope="row" class="row-header">Contents</th>
<td class="content-container">
<em><a href="#population-criteria">Population Criteria</a></em>
<br/>
<em><a href="#definitions">Logic Definitions</a></em>
<br/>
<em><a href="#terminology">Terminology</a></em>
<br/>
<em><a href="#dependencies">Dependencies</a></em>
<br/>
<em><a href="#data-requirements">Data Requirements</a></em>
<br/>
<em><a href="#parameters">Parameters</a></em>
<br/>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="population-criteria"> </a>Population Criteria</th>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header">Measure Group (Rate)</th>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="definitions"> </a>Logic Definitions</th>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> CHF</td>
</tr>
<tr>
<td>
<a name="chf-body-weight"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">// Case Features
define "Body Weight":
[Observation: "Body weight"] O
where O.status = 'final'
and references(O.encounter, Encounter)</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> CHF</td>
</tr>
<tr>
<td>
<a name="chf-current-body-weight"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define "Current Body Weight":
First("Body Weight" WT where WT.issued same day as Today() sort by issued descending)</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> CHF</td>
</tr>
<tr>
<td>
<a name="chf-previous-body-weight"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define "Previous Body Weight":
First("Body Weight" WT where WT.issued 1 day before day of Today() sort by issued descending)</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> CHF</td>
</tr>
<tr>
<td>
<a name="chf-current-body-weight-change"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define "Current Body Weight Change":
"Current Body Weight".value - "Previous Body Weight".value</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> CHF</td>
</tr>
<tr>
<td>
<a name="chf-references"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">// TODO: Handle contained references
// TODO: Handle bundle references
// TODO: Handle remote references
define function references(reference Reference, encounter Encounter):
EndsWith(reference.reference, '/' + encounter.id)</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> FHIRHelpers</td>
</tr>
<tr>
<td>
<a name="fhirhelpers-tointeger"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define function ToInteger(value integer): value.value</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> FHIRHelpers</td>
</tr>
<tr>
<td>
<a name="fhirhelpers-tostring"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define function ToString(value ObservationStatus): value.value</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> FHIRHelpers</td>
</tr>
<tr>
<td>
<a name="fhirhelpers-tostring"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define function ToString(value string): value.value</code></pre>
</td>
</tr>
<tr>
<th scope="row" rowspan="2" class="row-header">
Logic Definition
</th>
<td class="content-container"><em>Library Name:</em> FHIRHelpers</td>
</tr>
<tr>
<td>
<a name="fhirhelpers-todatetime"> </a>
<pre style="border: none;" class="content-container highlight language-cql"><code class="language-cql">define function ToDateTime(value instant): value.value</code></pre>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="terminology"> </a>Terminology</th>
</tr>
<tr>
<th scope="row" class="row-header">Code System</th>
<td class="content-container">
<em>Description</em>: Code system LOINC
<br/>
<em>Resource</em>: <a href="http://tx.fhir.org/r4/ValueSet/x-loinc2.82">LOINC</a>
<br/>
<em>Canonical URL</em>: <tt>http://loinc.org</tt>
</td>
</tr>
<tr>
<th scope="row" class="row-header">Direct Reference Code</th>
<td class="content-container">
<em>Code</em>: 29463-7
<br/>
<em>System</em>: <tt>http://loinc.org</tt>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="dependencies"> </a>Dependencies</th>
</tr>
<tr>
<th scope="row" class="row-header">Dependency</th>
<td class="content-container">
<em>Description</em>: Library FHIRHelpers
<br/>
<em>Resource</em>: <code>http://hl7.org/fhir/Library/FHIRHelpers|4.0.1</code>
<br/>
<em>Canonical URL</em>: <tt>http://hl7.org/fhir/Library/FHIRHelpers|4.0.1</tt>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="data-requirements"> </a>Data Requirements</th>
</tr>
<tr>
<th scope="row" class="row-header">Data Requirement</th>
<td class="content-container">
<em>Type</em>: Observation
<br/>
<em>Profile(s)</em>:
<a href="http://hl7.org/fhir/R4/observation.html">Observation</a>
<br/>
<em>Must Support Elements</em>: code, status, encounter, issued
<br/>
<em>Code Filter(s)</em>:
<br/>
<span class="tab-one"><em>Path</em>: code</span>
<br/>
<span class="tab-one"><em>Code(s)</em>:
<a href="https://loinc.org/29463-7">LOINC: 29463-7</a> (Body weight)
</span>
<br/>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header"><a name="parameters"> </a>Parameters</th>
</tr>
<tr>
<th scope="row" class="row-header"/>
<td class="content-container">
<table>
<thead>
<tr>
<td><em>Name</em></td>
<td><em>Use</em></td>
<td><em>Card.</em></td>
<td><em>Type</em></td>
<td><em>Documentation</em></td>
</tr>
</thead>
<tbody>
<tr>
<td>Encounter</td>
<td>In</td>
<td>0..1</td>
<td>Encounter</td>
<td/>
</tr>
<tr>
<td>Current Body Weight Change</td>
<td>Out</td>
<td>0..1</td>
<td>integer</td>
<td/>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<th colspan="2" scope="row" class="row-header">Generated using version 0.5.4 of the sample-content-ig Liquid templates</th>
</tr>
</tbody>
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<title value="CHF Body Weight Change Metric"/>
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<date value="2026-04-29T15:06:55+00:00"/>
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IG © 2023+ HL7 International / Clinical Decision Support.
Package hl7.fhir.uv.cpg#2.0.0 based on FHIR 4.0.1.
Generated
2026-04-29
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