Definition for Code SystemEvidenceVariableHandling

<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="variable-handling"/> 
  <meta> 
    <lastUpdated value="2022-09-07T10:58:29.429+10:00"/> 
    <profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/> 
  </meta> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p> This code system 
        <code> http://hl7.org/fhir/variable-handling</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">continuous
            <a name="variable-handling-continuous"> </a> 
          </td> 
          <td> continuous variable</td> 
          <td> A continuous variable is one for which, within the limits the variable ranges, any value
             is possible (from STATO http://purl.obolibrary.org/obo/STATO_0000251).</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">dichotomous
            <a name="variable-handling-dichotomous"> </a> 
          </td> 
          <td> dichotomous variable</td> 
          <td> A dichotomous variable is a categorical variable which is defined to have only 2 categories
             or possible values (from STATO http://purl.obolibrary.org/obo/STATO_0000090).</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">ordinal
            <a name="variable-handling-ordinal"> </a> 
          </td> 
          <td> ordinal variable</td> 
          <td> An ordinal variable is a categorical variable where the discrete possible values are ordered
             or correspond to an implicit ranking (from STATO http://purl.obolibrary.org/obo/STATO_0000228).</td> 
        </tr> 
        <tr> 
          <td style="white-space:nowrap">polychotomous
            <a name="variable-handling-polychotomous"> </a> 
          </td> 
          <td> polychotomous variable</td> 
          <td> A polychotomous variable is a categorical variable which is defined to have minimally
             2 categories or possible values. (from STATO  http://purl.obolibrary.org/obo/STATO_0000087).
              Suggestion to limit code use to situations when neither dichotomous nor ordinal variables
             apply.</td> 
        </tr> 
      </table> 
    </div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="trial-use"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="5"/> 
  </extension> 
  <url value="http://hl7.org/fhir/variable-handling"/> 
  <identifier> 
    <system value="urn:ietf:rfc:3986"/> 
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1956"/> 
  </identifier> 
  <version value="5.0.0-ballot"/> 
  <name value="EvidenceVariableHandling"/> 
  <title value="EvidenceVariableHandling"/> 
  <status value="draft"/> 
  <experimental value="false"/> 
  <date value="2021-01-05T10:01:24+11:00"/> 
  <publisher value="HL7 (FHIR Project)"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
    <telecom> 
      <system value="email"/> 
      <value value="fhir@lists.hl7.org"/> 
    </telecom> 
  </contact> 
  <description value="The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous,
   Continuous, Descriptive)."/> 
  <caseSensitive value="true"/> 
  <valueSet value="http://hl7.org/fhir/ValueSet/variable-handling"/> 
  <content value="complete"/> 
  <concept> 
    <code value="continuous"/> 
    <display value="continuous variable"/> 
    <definition value="A continuous variable is one for which, within the limits the variable ranges, any value
     is possible (from STATO http://purl.obolibrary.org/obo/STATO_0000251)."/> 
  </concept> 
  <concept> 
    <code value="dichotomous"/> 
    <display value="dichotomous variable"/> 
    <definition value="A dichotomous variable is a categorical variable which is defined to have only 2 categories
     or possible values (from STATO http://purl.obolibrary.org/obo/STATO_0000090)."/> 
  </concept> 
  <concept> 
    <code value="ordinal"/> 
    <display value="ordinal variable"/> 
    <definition value="An ordinal variable is a categorical variable where the discrete possible values are ordered
     or correspond to an implicit ranking (from STATO http://purl.obolibrary.org/obo/STATO_0000228)."/> 
  </concept> 
  <concept> 
    <code value="polychotomous"/> 
    <display value="polychotomous variable"/> 
    <definition value="A polychotomous variable is a categorical variable which is defined to have minimally
     2 categories or possible values. (from STATO  http://purl.obolibrary.org/obo/STATO_0000087).
      Suggestion to limit code use to situations when neither dichotomous nor ordinal variables
     apply."/> 
  </concept> 
</CodeSystem>