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<a href="/measure-lifecycle/measure-specification/define-data-sources">
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<a href="/measure-lifecycle/measure-specification/develop-specification/target-initial-population">
<span>Define the Target/Initial Population</span>
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<a href="/measure-lifecycle/measure-specification/develop-specification/denominator">
<span>Define the Denominator</span>
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<span>Define Stratification Scheme</span>
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<span>Respecifying Registry Measures to Electronic Clinical Quality Measures (eCQMs)</span>
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<a href="/measure-lifecycle/measure-specification/specify-code/code-systems-vocabularies-terminologies">
<span>Code Systems, Vocabularies, and Terminologies</span>
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<span>Encoding Clinical Information</span>
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<a href="/measure-lifecycle/measure-specification/data-protocol/key-terms">
<span>Define Key Terms, Data Elements, Codes, and Code Systems</span>
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<a href="/measure-lifecycle/measure-specification/data-protocol/level-measurement-analysis">
<span>Describe Level of Measurement &amp; Sampling</span>
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<a href="/measure-lifecycle/measure-specification/data-protocol/risk-adjustment">
<span>Determine Risk Adjustment</span>
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<span>Define Any Time Intervals</span>
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<span>Document the Measures</span>
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<span>Measure Harmonization</span>
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<span>When to Consider Measure Harmonization</span>
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<div class="usa-nav__headermenu-item">
<span><strong>Measure Testing</strong></span>
</div>
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<a href="/measure-lifecycle/measure-testing/overview">
<span>Overview</span>
</a>
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<span>Measure Testing Process</span>
</button>
<ul id="basic-nav-section-Measure-Testing-Process" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Measure-Testing-Process" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/develop-workplan">
<span>Develop The Testing Work Plan</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/perform-sampl">
<span>Perform Sampling</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/implement-and-analyze">
<span>Implement, Analyze, Refine &amp; Retest</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/summary">
<span>Measure Testing Summary</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/process/testing-respecified-measures">
<span>Testing Respecified Measures</span>
</a>
</li>
</ul>
</li>
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<span>Measure Evaluation Criteria</span>
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<ul id="basic-nav-section-Measure-Evaluation-Criteria" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Measure-Evaluation-Criteria" >
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<a href="/measure-lifecycle/measure-testing/evaluation-criteria/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-testing/evaluation-criteria/importance">
<span>Importance</span>
</a>
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<a href="/measure-lifecycle/measure-testing/evaluation-criteria/scientific-acceptability">
<span>Scientific Acceptability</span>
</a>
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<a href="/measure-lifecycle/measure-testing/evaluation-criteria/feasibility">
<span>Feasibility</span>
</a>
</li>
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<a href="/measure-lifecycle/measure-testing/evaluation-criteria/usability">
<span>Usability &amp; Use</span>
</a>
</li>
</ul>
</li>
</ul>
</div>
<div class="desktop:grid-col-3">
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<span><strong>Measure Implementation</strong></span>
</div>
<ul id="basic-nav-section-Measure-Implementation" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Measure-Implementation" >
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<a href="/measure-lifecycle/measure-implementation/overview">
<span>Overview</span>
</a>
</li>
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<a href="/measure-lifecycle/measure-implementation/selection">
<span>Measure Selection</span>
</a>
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<span>Pre-Rulemaking</span>
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<ul id="basic-nav-section-Pre-Rulemaking" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Pre-Rulemaking" >
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<a href="/measure-lifecycle/measure-implementation/pre-rulemaking/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/pre-rulemaking/guidance-measure-submitters">
<span>Guidance for Measure Submitters</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/pre-rulemaking/measure-priorities">
<span>Measure Priorities</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/pre-rulemaking/lists-and-reports">
<span>MUC Lists and Recommendation Reports</span>
</a>
</li>
</ul>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/rollout">
<span>Measure Rollout</span>
</a>
</li>
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<span>CMS Consensus-Based Entity (CBE) Endorsement and Maintenance</span>
</button>
<ul id="basic-nav-section-CMS-Consensus-Based-Entity-(CBE)-Endorsement-and-Maintenance" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-CMS-Consensus-Based-Entity-(CBE)-Endorsement-and-Maintenance" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/CMS-CBE-EM/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/CMS-CBE-EM/Measure-Submission-to-the-CMS-CBE">
<span>Measure Submission to the CMS CBE</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-implementation/CMS-CBE-EM/Endorsement-Process">
<span>The CMS CBE Endorsement Process</span>
</a>
</li>
</ul>
</li>
</ul>
</div>
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>Measure Use, Continuing Evaluation &amp; Maintenance</strong></span>
</div>
<ul id="basic-nav-section-Measure-Use,-Continuing-Evaluation-&amp;-Maintenance" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Measure-Use,-Continuing-Evaluation-&amp;-Maintenance" >
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<a href="/measure-lifecycle/measure-use/overview">
<span>Overview</span>
</a>
</li>
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<a href="/measure-lifecycle/measure-use/production-and-monitoring">
<span>Measure Production &amp; Monitoring</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/evaluation">
<span>Continuing Evaluation</span>
</a>
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<span>Measure Maintenance Reviews</span>
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<ul id="basic-nav-section-Measure-Maintenance-Reviews" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Measure-Maintenance-Reviews" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/maintenance/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/maintenance/annual-update">
<span>Annual Update</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/maintenance/comprehensive-reevaluation">
<span>Comprehensive Reevaluation</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/maintenance/early-maintenance-review">
<span>Early Maintenance Review</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/measure-use/maintenance/harmonization-during-maintenance">
<span>Harmonization during Measure Maintenance</span>
</a>
</li>
</ul>
</li>
</ul>
</div>
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>Interested Party Engagement</strong></span>
</div>
<ul id="basic-nav-section-Interested-Party-Engagement" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Interested-Party-Engagement" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/stakeholder-engagement/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/stakeholder-engagement/lifecycle">
<span>Interested Party Engagement in the Measure Lifecycle</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/stakeholder-engagement/roles">
<span>Roles in Engagement</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/measure-lifecycle/stakeholder-engagement/types">
<span>Types of Interested Party Engagement</span>
</a>
</li>
</ul>
</div>
</div>
</div>
</li>
<li class="usa-nav__primary-item is_expanded">
<button id="usa-accordion__button" class="usa-accordion__button usa-nav__link is_expanded " aria-expanded="false" aria-controls="extended-mega-nav-section-3">
<span>Tools &amp; Resources</span>
</button>
<div id="extended-mega-nav-section-3" class="usa-nav__submenu usa-megamenu" hidden="">
<div class="grid-row grid-gap-3 gridused">
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>MMS Tools &amp; Resources</strong></span>
</div>
<ul id="basic-nav-section-MMS-Tools-&amp;-Resources" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-MMS-Tools-&amp;-Resources" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/tools-and-resources/mms-supplemental-materials">
<span>Supplemental Materials</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/tools-and-resources/mms-templates">
<span>Templates for Measure Development</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/educational-resources">
<span>Educational Resources</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/mms-tools">
<span>MMS Tools</span>
</a>
</li>
</ul>
</div>
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>Additional Tools &amp; Resources</strong></span>
</div>
<ul id="basic-nav-section-Additional-Tools-&amp;-Resources" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Additional-Tools-&amp;-Resources" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/cms-tools">
<span>CMS Tools</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/external-resources">
<span>External Resources</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="https://mmshub.cms.gov/glossary">
<span>Glossary</span>
</a>
</li>
</ul>
</div>
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>Pre-Rulemaking Resources</strong></span>
</div>
<ul id="basic-nav-section-Pre-Rulemaking-Resources" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Pre-Rulemaking-Resources" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/Pre-Rulemaking-Resources">
<span>Pre-Rulemaking Resources</span>
</a>
</li>
</ul>
</div>
</div>
</div>
</li>
<li class="usa-nav__primary-item is_expanded">
<button id="usa-accordion__button" class="usa-accordion__button usa-nav__link is_expanded " aria-expanded="false" aria-controls="extended-mega-nav-section-4">
<span>Get Involved</span>
</button>
<div id="extended-mega-nav-section-4" class="usa-nav__submenu usa-megamenu" hidden="">
<div class="grid-row grid-gap-3 gridused">
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>Get Involved</strong></span>
</div>
<ul id="basic-nav-section-Get-Involved" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Get-Involved" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/how-to">
<span>How to Get Involved</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_expanded">
<button id="usa-accordion__button_second-1 usa-nav__submenu-list-2" class="usa-accordion__button_second usa-nav__link is_expanded closed" aria-expanded="false" aria-controls="basic-nav-section-Get-Involved">
<span>Technical Expert Panels</span>
</button>
<ul id="basic-nav-section-Technical-Expert-Panels" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Technical-Expert-Panels" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/technical-expert-panel/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/technical-expert-panel/current">
<span>Current TEP Opportunities</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/technical-expert-panel/updates">
<span>Updates to Established TEPs</span>
</a>
</li>
</ul>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_expanded">
<button id="usa-accordion__button_second-1 usa-nav__submenu-list-2" class="usa-accordion__button_second usa-nav__link is_expanded closed" aria-expanded="false" aria-controls="basic-nav-section-Get-Involved">
<span>Public Comments</span>
</button>
<ul id="basic-nav-section-Public-Comments" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-Public-Comments" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/public-comments/overview">
<span>Overview</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/public-comments/current">
<span>Current Public Comment Opportunities</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/public-comments/summaries">
<span>Summaries of Past Public Comments</span>
</a>
</li>
</ul>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/call-for-measures">
<span>Call for Measures</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/get-involved/other-involvement">
<span>Other Types of Involvement</span>
</a>
</li>
</ul>
</div>
</div>
</div>
</li>
<li class="usa-nav__primary-item is_expanded">
<button id="usa-accordion__button" class="usa-accordion__button usa-nav__link is_expanded " aria-expanded="false" aria-controls="extended-mega-nav-section-5">
<span>News &amp; Events</span>
</button>
<div id="extended-mega-nav-section-5" class="usa-nav__submenu usa-megamenu" hidden="">
<div class="grid-row grid-gap-3 gridused">
<div class="desktop:grid-col-3">
<div class="usa-nav__headermenu-item">
<span><strong>News &amp; Events</strong></span>
</div>
<ul id="basic-nav-section-News-&amp;-Events" class="usa-nav__submenu-list-2 is_collapsed " aria-controls="extended-mmega-nav-section-News-&amp;-Events" >
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/news-events/all">
<span>News &amp; Events</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/news-events/news-by-month">
<span>News By Month</span>
</a>
</li>
<li class="usa-nav__submenu-item menu_level_2 is_collapsed ">
<a href="/news-events/event-calendar">
<span>Event Calendar</span>
</a>
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</li>
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</div>
</nav>
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<section class="usa-hero usa-hero-interior">
<div class="usa-hero__callout">
<div id="block-mms-hcd-breadcrumbs" class="grid-container grid-col-12 block block-system block-system-breadcrumb-block">
<nav class="usa-breadcrumb" role="navigation" aria-labelledby="system-breadcrumb">
<h2 id="system-breadcrumb" class="usa-sr-only">Breadcrumb</h2>
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<li class="usa-breadcrumb__list-item">
<a href="/" class="usa-breadcrumb__link"><span>Home</span></a>
</li>
<li class="usa-breadcrumb__list-item">
<a href="/measure-lifecycle/measure-specification/overview" class="usa-breadcrumb__link"><span>Measure Specification</span></a>
</li>
<li class="usa-breadcrumb__list-item">
<a href="/measure-lifecycle/measure-specification/specify-code/overview" class="usa-breadcrumb__link"><span>Specify The Code</span></a>
</li>
<li class="usa-breadcrumb__list-item">
<span>Other Important Code Systems</span>
</li>
</ol>
</nav>
</div>
<div class="views-element-container grid-container grid-col-12 block block-views block-views-blockparent-title-block-1" id="block-views-block-parent-title-block-1">
<div><div class="js-view-dom-id-2a33fa5df35311228f669b07cd4b3e06b84b17ada4a49282c0c8af1c041e5f16">
<div class="views-row"><div class="views-field views-field-field-parent-title"><h1 class="field-content"><span class="glossify-exclude">Measure <abbr tabindex="0" title="&lt;p&gt;&lt;span class=&quot;glossify-exclude&quot;&gt;Specifications&lt;/span&gt; are measure instructions addressing data elements, data sources, point of data collection, timing and frequency of data collection and reporting, specific instruments used (if appropriate), and implementation strategies.&lt;/p&gt; " class="glossify-tooltip-tip" lang="en">Specification</abbr></span></h1></div></div>
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</div>
</div>
</section>
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id="main-content">
<a href="#" id="main-content" class="hidden" tabindex="-1">main-content</a>
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<h2 class="usa-sr-only" id="block-mainnavigation-2-menu">Main navigation</h2>
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<a href="/measure-lifecycle/measure-specification/overview">Overview</a>
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<span class="usa-accordion__button usa-nav__link ">
<a href="/measure-lifecycle/measure-specification/specifications-measure-category">Specifications by Measure Category</a>
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<span class="usa-accordion__button usa-nav__link ">
<a href="/measure-lifecycle/measure-specification/define-data-sources">Define Data Sources</a>
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<a href="/measure-lifecycle/measure-specification/develop-specification">Develop Specifications</a>
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<span class="usa-accordion__button usa-nav__link usa-current">
<a href="/measure-lifecycle/measure-specification/specify-code">Specify the Code</a>
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<a href="/measure-lifecycle/measure-specification/data-protocol">Construct Data Protocol</a>
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<a href="/measure-lifecycle/measure-specification/document-measure">Document the Measures</a>
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<span class="usa-accordion__button usa-nav__link ">
<a href="/measure-lifecycle/measure-specification/measure-harmonization">Measure Harmonization</a>
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<h1 class="margin-0">
<span property="schema:name">Other Important Code Systems</span>
</h1>
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<div property="schema:text" class="field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Best practice for encoding some <abbr tabindex="0" title="&lt;p&gt;A data element is a basic unit of information with a unique meaning and subcategories (data items) of distinct value. National Institute of Standards and Technology. (n.d.). &lt;em&gt;Data element&lt;/em&gt;. Computer Security Resource Center. Retrieved November 1, 2023, from&amp;nbsp;&lt;a href=&quot;https://csrc.nist.gov/glossary/term/data_element&quot;&gt;https://csrc.nist.gov/glossary/term/data_element&lt;/a&gt;&lt;/p&gt; " class="glossify-tooltip-tip" lang="en">data elements</abbr> is to use <abbr tabindex="0" title="&lt;p&gt;A code system is a managed collection of concepts with each concept represented by at least one internally unique code and a human-readable description (e.g., SNOMED CT).&lt;/p&gt; " class="glossify-tooltip-tip" lang="en">code systems</abbr> that represent a specific type of information, particularly when the code system is in widespread use. When considering inclusion of data in a measure without a recommended code set, determine whether a specific authoritative code system is in widespread use and consider including that code system in the measure.</p>
<p>Examples</p>
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<li><a href="https://www.ada.org/en/publications/cdt">CDT <em>Code on Dental Procedures and Nomenclature</em></a></li>
<li><a href="https://www2a.cdc.gov/vaccines/iis/iisstandards/vaccines.asp?rpt=cvx">CVX</a> (for vaccines)</li>
<li><abbr tabindex="0" title="&lt;p&gt;HL7 is a standards-developing organization providing a framework and standards for the exchange, integration, sharing, and retrieval of electronic health information supporting clinical practice and the management, delivery, and evaluation of health services.&lt;/p&gt; " class="glossify-tooltip-tip" lang="en">Health Level Seven International</abbr>®&nbsp;(e.g., Administrative Gender, Discharge Disposition)</li>
<li><a href="http://www.who.int/classifications/icf/en/">ICF—<em>International Classification of Functioning, Disability, and Health</em></a></li>
<li><a href="https://phinvads.cdc.gov/vads/ViewCodeSystem.action?id=2.16.840.1.113883.6.259">NHSN Healthcare Facility Patient Care Location (HSLOC in the <em>Value Set Authority Center&nbsp;</em>[VSAC])</a></li>
<li>NUCC <a href="https://www.nucc.org/index.php"><em>National Uniform Claim Committee</em></a></li>
<li><a href="https://www.nahdo.org/sopt">Source of Payment Typology</a> (National Association of Health Data Organizations [NAHDO])</li>
<li><a href="http://unitsofmeasure.org/trac">UCUM <em>The Unified Code for Units of Measure</em></a></li>
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<div class="views-row"><span class="views-field views-field-changed"><strong class="views-label views-label-changed">Last Updated: </strong><span class="field-content"><time datetime="2023-04-12T13:21:17-04:00">Apr 2023</time>
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