FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4
0.0.1-snapshot-2 - informative International flag

FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4 - Version 0.0.1-snapshot-2. See the Directory of published versions

: Cross-version VS for R4.ProbabilityDistributionType for use in FHIR R4B - XML Representation

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<ValueSet xmlns="http://hl7.org/fhir">
  <id value="R4-probability-distribution-type-for-R4B"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: ValueSet R4-probability-distribution-type-for-R4B</b></p><a name="R4-probability-distribution-type-for-R4B"> </a><a name="hcR4-probability-distribution-type-for-R4B"> </a><p>This value set expansion contains 5 concepts.</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>System</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap"><a name="R4-probability-distribution-type-for-R4B-http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType-B"> </a>  <a href="http://terminology.hl7.org/6.5.0/CodeSystem-v3-ProbabilityDistributionType.html#v3-ProbabilityDistributionType-B">B</a></td><td>http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType</td><td>beta</td><td>The beta-distribution is used for data that is bounded on both sides and may or may not be skewed (e.g., occurs when probabilities are estimated.) Two parameters a and b are available to adjust the curve. The mean m and variance s2 relate as follows: m = a/ (a + b) and s2 = ab/((a + b)2 (a + b + 1)).</td></tr><tr><td style="white-space:nowrap"><a name="R4-probability-distribution-type-for-R4B-http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType-F"> </a>  <a href="http://terminology.hl7.org/6.5.0/CodeSystem-v3-ProbabilityDistributionType.html#v3-ProbabilityDistributionType-F">F</a></td><td>http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType</td><td>F</td><td>Used to describe the quotient of two c2 random variables. The F-distribution has two parameters n1 and n2, which are the numbers of degrees of freedom of the numerator and denominator variable respectively. The relationship to mean m and variance s2 are: m = n2 / (n2 - 2) and s2 = (2 n2 (n2 + n1 - 2)) / (n1 (n2 - 2)2 (n2 - 4)).</td></tr><tr><td style="white-space:nowrap"><a name="R4-probability-distribution-type-for-R4B-http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType-LN"> </a>  <a href="http://terminology.hl7.org/6.5.0/CodeSystem-v3-ProbabilityDistributionType.html#v3-ProbabilityDistributionType-LN">LN</a></td><td>http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType</td><td>log-normal</td><td>The logarithmic normal distribution is used to transform skewed random variable X into a normally distributed random variable U = log X. The log-normal distribution can be specified with the properties mean m and standard deviation s. Note however that mean m and standard deviation s are the parameters of the raw value distribution, not the transformed parameters of the lognormal distribution that are conventionally referred to by the same letters. Those log-normal parameters mlog and slog relate to the mean m and standard deviation s of the data value through slog2 = log (s2/m2 + 1) and mlog = log m - slog2/2.</td></tr><tr><td style="white-space:nowrap"><a name="R4-probability-distribution-type-for-R4B-http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType-T"> </a>  <a href="http://terminology.hl7.org/6.5.0/CodeSystem-v3-ProbabilityDistributionType.html#v3-ProbabilityDistributionType-T">T</a></td><td>http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType</td><td>T</td><td>Used to describe the quotient of a normal random variable and the square root of a c2 random variable. The t-distribution has one parameter n, the number of degrees of freedom. The relationship to mean m and variance s2 are: m = 0 and s2 = n / (n - 2)</td></tr><tr><td style="white-space:nowrap"><a name="R4-probability-distribution-type-for-R4B-http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType-X2"> </a>  <a href="http://terminology.hl7.org/6.5.0/CodeSystem-v3-ProbabilityDistributionType.html#v3-ProbabilityDistributionType-X2">X2</a></td><td>http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType</td><td>chi square</td><td>Used to describe the sum of squares of random variables which occurs when a variance is estimated (rather than presumed) from the sample. The only parameter of the c2-distribution is n, so called the number of degrees of freedom (which is the number of independent parts in the sum). The c2-distribution is a special type of g-distribution with parameter a = n /2 and b = 2. Hence, m = n and s2 = 2 n.</td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/package-source">
    <extension url="packageId">
      <valueId value="hl7.fhir.uv.xver-r4.r4b"/>
    </extension>
    <extension url="version">
      <valueString value="0.0.1-snapshot-2"/>
    </extension>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="0">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
        <valueCanonical
                        value="http://hl7.org/fhir/4.0/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"/>
      </extension>
    </valueInteger>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="informative">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
        <valueCanonical
                        value="http://hl7.org/fhir/4.0/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"/>
      </extension>
    </valueCode>
  </extension>
  <url
       value="http://hl7.org/fhir/4.0/ValueSet/R4-probability-distribution-type-for-R4B"/>
  <version value="0.0.1-snapshot-2"/>
  <name value="R4_probability_distribution_type_for_R4B"/>
  <title
         value="Cross-version VS for R4.ProbabilityDistributionType for use in FHIR R4B"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2025-09-01T22:36:16.898926+10:00"/>
  <publisher value="FHIR Infrastructure"/>
  <contact>
    <name value="FHIR Infrastructure"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/fiwg"/>
    </telecom>
  </contact>
  <description
               value="This cross-version ValueSet represents concepts from http://hl7.org/fhir/ValueSet/probability-distribution-type|4.0.1 for use in FHIR R4B. Concepts not present here have direct `equivalent` mappings crossing all versions from R4 to R4B."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <compose>
    <include>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <concept>
        <code value="B"/>
        <display value="beta"/>
      </concept>
      <concept>
        <code value="F"/>
        <display value="F"/>
      </concept>
      <concept>
        <code value="LN"/>
        <display value="log-normal"/>
      </concept>
      <concept>
        <code value="T"/>
        <display value="T"/>
      </concept>
      <concept>
        <code value="X2"/>
        <display value="chi square"/>
      </concept>
    </include>
  </compose>
  <expansion>
    <timestamp value="2025-09-01T22:36:16.898927+10:00"/>
    <contains>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <code value="B"/>
      <display value="beta"/>
    </contains>
    <contains>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <code value="F"/>
      <display value="F"/>
    </contains>
    <contains>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <code value="LN"/>
      <display value="log-normal"/>
    </contains>
    <contains>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <code value="T"/>
      <display value="T"/>
    </contains>
    <contains>
      <system
              value="http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType"/>
      <version value="2018-08-12"/>
      <code value="X2"/>
      <display value="chi square"/>
    </contains>
  </expansion>
</ValueSet>