Dissolve-E: AWMF Guideline Registry
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| Active as of 2026-01-29 |
<CodeSystem xmlns="http://hl7.org/fhir">
<id value="cs-ocebm-2009-levels-of-evidence"/>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem cs-ocebm-2009-levels-of-evidence</b></p><a name="cs-ocebm-2009-levels-of-evidence"> </a><a name="hccs-ocebm-2009-levels-of-evidence"> </a><p>This case-insensitive code system <code>http://fhir.awmf.org/awmf.ig/CodeSystem/cs-ocebm-2009-levels-of-evidence</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Definition</b></td><td><b>Deutsch (German, de)</b></td></tr><tr><td style="white-space:nowrap">1a<a name="cs-ocebm-2009-levels-of-evidence-1a"> </a></td><td>Systematic reviews of high-quality RCTs</td><td>1a</td></tr><tr><td style="white-space:nowrap">1b<a name="cs-ocebm-2009-levels-of-evidence-1b"> </a></td><td>Individual RCT (with narrow confidence interval)</td><td>1b</td></tr><tr><td style="white-space:nowrap">1c<a name="cs-ocebm-2009-levels-of-evidence-1c"> </a></td><td>All or none RCTs</td><td>1c</td></tr><tr><td style="white-space:nowrap">2a<a name="cs-ocebm-2009-levels-of-evidence-2a"> </a></td><td>Systematic reviews of cohort studies</td><td>2a</td></tr><tr><td style="white-space:nowrap">2b<a name="cs-ocebm-2009-levels-of-evidence-2b"> </a></td><td>Individual cohort study or low-quality RCT</td><td>2b</td></tr><tr><td style="white-space:nowrap">2c<a name="cs-ocebm-2009-levels-of-evidence-2c"> </a></td><td>Outcomes research; ecological studies</td><td>2c</td></tr><tr><td style="white-space:nowrap">3a<a name="cs-ocebm-2009-levels-of-evidence-3a"> </a></td><td>Systematic reviews of case-control studies</td><td>3a</td></tr><tr><td style="white-space:nowrap">3b<a name="cs-ocebm-2009-levels-of-evidence-3b"> </a></td><td>Individual case-control study</td><td>3b</td></tr><tr><td style="white-space:nowrap">4<a name="cs-ocebm-2009-levels-of-evidence-4"> </a></td><td>Case series</td><td>4</td></tr><tr><td style="white-space:nowrap">5<a name="cs-ocebm-2009-levels-of-evidence-5"> </a></td><td>Expert opinion</td><td>5</td></tr></table></div>
</text>
<url
value="http://fhir.awmf.org/awmf.ig/CodeSystem/cs-ocebm-2009-levels-of-evidence"/>
<version value="0.2.0"/>
<name value="OCEBM2009LevelsOfEvidence"/>
<title value="OCEBM 2009 Levels of Evidence"/>
<status value="active"/>
<experimental value="false"/>
<date value="2026-01-29T18:27:10+00:00"/>
<publisher value="AWMF e.V."/>
<contact>
<name value="AWMF e.V."/>
<telecom>
<system value="url"/>
<value value="https://www.awmf.org"/>
</telecom>
</contact>
<description
value="CodeSystem representing the Oxford Centre for Evidence-Based Medicine 2009 CEBM Levels of Evidence"/>
<caseSensitive value="false"/>
<content value="complete"/>
<count value="10"/>
<concept>
<code value="1a"/>
<display value="1a"/>
<definition value="Systematic reviews of high-quality RCTs">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Systematische Reviews hochwertiger RCTs"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="1a"/>
</designation>
</concept>
<concept>
<code value="1b"/>
<display value="1b"/>
<definition value="Individual RCT (with narrow confidence interval)">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString
value="Einzelne randomisierte kontrollierte Studien (mit engem Konfidenzintervall)"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="1b"/>
</designation>
</concept>
<concept>
<code value="1c"/>
<display value="1c"/>
<definition value="All or none RCTs">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString
value="Alle oder keine randomisierten kontrollierten Studien"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="1c"/>
</designation>
</concept>
<concept>
<code value="2a"/>
<display value="2a"/>
<definition value="Systematic reviews of cohort studies">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Systematische Reviews von Kohortenstudien"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="2a"/>
</designation>
</concept>
<concept>
<code value="2b"/>
<display value="2b"/>
<definition value="Individual cohort study or low-quality RCT">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString
value="Individuelle Kohortenstudie oder randomisierte kontrollierte Studien mit niedriger Qualität"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="2b"/>
</designation>
</concept>
<concept>
<code value="2c"/>
<display value="2c"/>
<definition value="Outcomes research; ecological studies">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Outcomes-Forschung; ökologische Studien"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="2c"/>
</designation>
</concept>
<concept>
<code value="3a"/>
<display value="3a"/>
<definition value="Systematic reviews of case-control studies">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString
value="Systematische Überprüfung von Fall-Kontroll-Studien"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="3a"/>
</designation>
</concept>
<concept>
<code value="3b"/>
<display value="3b"/>
<definition value="Individual case-control study">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Einzelne Fall-Kontroll-Studie"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="3b"/>
</designation>
</concept>
<concept>
<code value="4"/>
<display value="4"/>
<definition value="Case series">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Fallserie"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="4"/>
</designation>
</concept>
<concept>
<code value="5"/>
<display value="5"/>
<definition value="Expert opinion">
<extension url="http://hl7.org/fhir/StructureDefinition/translation">
<extension url="lang">
<valueCode value="de"/>
</extension>
<extension url="content">
<valueString value="Expertenmeinung"/>
</extension>
</extension>
</definition>
<designation>
<language value="de"/>
<value value="5"/>
</designation>
</concept>
</CodeSystem>