Lithuanian CVD Implementation Guide, published by Lithuanian Medical Library. This guide is not an authorized publication; it is the continuous build for version 0.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7LT/ig-lt-cvd/ and changes regularly. See the Directory of published versions

• Narrative Content
• XML
• JSON

: Ejection Fraction Category

Draft as of 2026-04-10

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="ejection-fraction-category"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xml:lang="en" lang="en"><hr/><p><b>English</b></p><hr/><p class="res-header-id"><b>Generated Narrative: CodeSystem ejection-fraction-category</b></p><a name="ejection-fraction-category"> </a><a name="hcejection-fraction-category"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Language: en</p></div><p>This case-sensitive code system <code>https://tx.hl7.lt/fhir/CodeSystem/ejection-fraction-category</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">preserved<a name="ejection-fraction-category-preserved"> </a></td><td>Preserved (EF &gt;= 50%)</td><td>Left ventricular ejection fraction is preserved (&gt;= 50%).</td></tr><tr><td style="white-space:nowrap">mildly-reduced<a name="ejection-fraction-category-mildly-reduced"> </a></td><td>Mildly reduced (EF 41-49%)</td><td>Left ventricular ejection fraction is mildly reduced (41-49%).</td></tr><tr><td style="white-space:nowrap">reduced<a name="ejection-fraction-category-reduced"> </a></td><td>Reduced (EF &lt;= 40%)</td><td>Left ventricular ejection fraction is reduced (&lt;= 40%).</td></tr></table></div>
  </text>
  <url value="https://tx.hl7.lt/fhir/CodeSystem/ejection-fraction-category"/>
  <version value="0.0.1"/>
  <name value="EjectionFractionCategoryCS"/>
  <title value="Ejection Fraction Category"/>
  <status value="draft"/>
  <experimental value="true"/>
  <date value="2026-04-10T05:28:05+00:00"/>
  <publisher value="Lithuanian Medical Library"/>
  <contact>
    <name value="Lithuanian Medical Library"/>
    <telecom>
      <system value="url"/>
      <value value="https://medicinosnk.lt"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="info@medicinosnk.lt"/>
    </telecom>
  </contact>
  <description
               value="Categories for left ventricular ejection fraction (LVEF) classification."/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="LT"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="3"/>
  <concept>
    <code value="preserved"/>
    <display value="Preserved (EF &gt;= 50%)"/>
    <definition
                value="Left ventricular ejection fraction is preserved (&gt;= 50%)."/>
  </concept>
  <concept>
    <code value="mildly-reduced"/>
    <display value="Mildly reduced (EF 41-49%)"/>
    <definition
                value="Left ventricular ejection fraction is mildly reduced (41-49%)."/>
  </concept>
  <concept>
    <code value="reduced"/>
    <display value="Reduced (EF &lt;= 40%)"/>
    <definition
                value="Left ventricular ejection fraction is reduced (&lt;= 40%)."/>
  </concept>
</CodeSystem>