nih-gov/www.nlm.nih.gov/vsac/support/usingvsac/valuesetcomparisontool.html
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<div class="h1">Value Set Comparison Tool</div>
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<p>The VSAC Comparison Tool allows you to compare many different elements of value sets and quality measures
within
VSAC. You can compare value sets that have been published by an eCQM or C-CDA program release, as well as
any
value
set within VSAC, regardless of whether it was published as part of a program release. When you review your
final
comparison results, rows that are shaded red indicate differences, where rows shaded grey indicate
similarities.
</p>
<p>Here are several of the functionalities the Comparison Tool offers:</p>
<div class="usa-accordion usa-accordion--bordered"><!-- start accordion-->
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-1">Compare Codes in Different Value Sets
</button>
</h4>
<div id="valuesetcomparisontool-section-1" class="usa-accordion__content">
<ol>
<li>In the Comparison Tool, select the <q>Value Sets</q> option in the left side bar.</li>
<li>Select the "Choose value sets to compare" section. Then, you have the option to search by
program, release, and you can also enter a search term in the query box. <br /><br /><img
id="22comparevs" src=" /vsac/support/usingvsac/2comparevs.png" class="img-fluid"
alt="Choose value sets to compare" /> <br /><br /><img id="3vssrch"
src=" /vsac/support/usingvsac/3vssrcha.png" class="img-fluid"
alt="Search for value sets" /><br /><br /></li>
<li>In the results, select the value set that you would like to compare. <br /><br /></li>
<li>To retreive a particular value set, use the filters at the top of the columns: name, code
system, definition type, steward, OID, and code count. For example, type the word
&ldquo;discharge&rdquo; to filter the &ldquo;name&rdquo; column by value sets that have the word
&ldquo;discharge&rdquo; in the name field. Then, click on the &ldquo;plus&rdquo; sign next to
the value set that you would like to select. The &ldquo;plus&rdquo; sign becomes a
&ldquo;minus&rdquo; sign.<br /><br /><img id="4matchvs"
src=" /vsac/support/usingvsac/4matchvs.png" class="img-fluid"
alt="Matched Value Sets Select Definitions or Expansions to Compare" />
<br /><br />
</li>
<li>Select the definition versions or expansion versions you would like to compare. &#40;Note, only
authors and stewards have access to the definition versions.&#41; In this case, the expansion
version, 20220527 is selected. Select the &ldquo; + Add Comparison Items&rdquo; button.
<br /><br /><img id="5selectdefexp" src=" /vsac/support/usingvsac/5selectdefexp.png"
class="img-thumbnail" alt="Select the definitions and expansions" /> <br /><br />
</li>
<li>To add more value sets to compare, go back to &ldquo;Matched Value Sets&rdquo; by selecting the
top section “Choose value sets to compare” and select another value set to compare. Select the
&ldquo;+ Add Comparison Items&rdquo; button. Repeat steps #2 through #5 to select the value set
definitions and/or expansions you would like to compare for a minimum of 2 and a maximum of 5.
<br /><br /><img id="8matchvs" src=" /vsac/support/usingvsac/8matchvs.png" class="img-fluid"
alt="Show comparison result"><br /><br />
</li>
<li>Once you have added your selected value set expansion versions to compare, select the
&ldquo;Code&rdquo; tab and then select a &ldquo;Show Comparison Result&rdquo; option:
<ul>
<li>&#40; All - both similarities and differences&#41;</li>
<li>&#40; Similar - just code similarities&#41;</li>
<li>&#40; Different - just the code differences&#41;<br /> <br /><img id="6acompcode"
src=" /vsac/support/usingvsac/6acompcode.png" class="img-fluid"
alt="Selections for Show Comparison Results" /><br /> <br /> </li>
</ul>
<li>Select the &ldquo;Compare&rdquo; button.<br /><br /><img id="10comparebutton"
src=" /vsac/support/usingvsac/10comparebutton.png" class="img-fluid"
alt="Show comparison result"><br /><br /></li>
<li>In this example, notice the code differences for two different value sets. If you would like to
export the results, select “Export Comparison".<br /><br /><img id="9ashowcompare"
src=" /vsac/support/usingvsac/9ashowcompare.png" class="img-fluid"
alt="Show Comparison Result" />
<br /><br />
</li>
</ol>
</div><!-- end accordion content-->
<h4 class="usa-accordion__heading">
<button type="button" class="usa-accordion__button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-2">Compare Codes between Different
Versions of a Value Set
</button>
</h4>
<div id="valuesetcomparisontool-section-2" class="usa-accordion__content">
<p>Compare value set codes between multiple expansion versions, or definition versions, of one value
set. Compare up to 5 value set expansions, or value set definitions, that you selected.</p>
<ol class="">
<li>In the Comparison Tool, select the &ldquo;Value Sets&rdquo; option in the left side bar.
</li>
<li>Select the &ldquo;Choose value sets to compare&rdquo; section. <br /><br /><img
id="2Acomparevs" src=" /vsac/support/usingvsac/2comparevs.png" class="img-fluid"
alt="Choose value sets to compare" />
<br /><br />
</li>
<li>Search for a value set by selecting a program and release, or you can choose the
&ldquo;All&rdquo; option to find value sets that were not published as part of an eCQM or
C-CDA
program release. You may also enter an OID or search terms in the Query box. Then, click the
&ldquo;Search&rdquo; button. <br /><br /><img id="11oidsearch"
src=" /vsac/support/usingvsac/11oidsearch.png" class="img-fluid"
alt="Search for a specific oid" />
<br /><br />
</li>
<li>Then, click on the &ldquo;plus&rdquo; sign next to the value set that you would like to
select.
The &ldquo;plus&rdquo; sign becomes a &ldquo;minus&rdquo; sign.<br /><br /><img
id="12encounter" src=" /vsac/support/usingvsac/12encounter.png" class="img-fluid"
alt="Select the value set and click the select the Definition Expansion button" />
<br /><br />
</li>
<li>Then, select the definition versions or expansion versions you would like to compare. (Note,
only authors and stewards have access to the definition versions.) In this case, the
expansion
version, 20220527 and eCQM Update 2022-05-05 are selected. Select the &ldquo;+ Add
Comparison
Items&rdquo; button.<br /><br /><img id="13aselectdefexp"
src=" /vsac/support/usingvsac/13selectdefexp.png" class="img-fluid"
alt="Select definitions and expansions to compare" /><br /><br /></li>
<li>Select the &ldquo;Code&rdquo; tab and select &ldquo;All&rdquo; (both similarities and
differences), &ldquo;Similar&rdquo; (just the code similarities), or &ldquo;Different&rdquo;
(just the code differences) in the &ldquo;Show Comparison Result&rdquo; option.</li>
<li>Select the "Compare" button.</li>
<li>In the example, notice the code similarities in the different value set expansions.</li>
<li>Select the &ldquo;Export Comparison&rdquo; button to export the results.<br /><br /><img
id="14oidshowcompare" src=" /vsac/support/usingvsac/14oidshowcompare.png"
class="img-fluid" alt="Select definitions and expansions to compare" /><br /><br /></li>
</ol>
</div><!-- end accordion content-->
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-3">Compare Metadata for Different
Versions of a Value Set
</button>
</h4>
<div id="valuesetcomparisontool-section-3" class="usa-accordion__content">
<ol class="">
<li>In the Comparison Tool, select the &ldquo;Value Sets&rdquo; option in the left side bar.
</li>
<li>Select the &ldquo;Choose value sets to compare&rdquo; section.<br /><br /><img
id="2bcomparevs" src=" /vsac/support/usingvsac/2comparevs.png" class="img-fluid"
alt="Choose value sets to compare" />
<br /><br />
</li>
<!--add image Compare Metadata and Codes between Value Sets -->
<li>Search for a value set by selecting a program and release, or you can choose the
&ldquo;All&rdquo; option to find value sets that were not published as part of an eCQM or
C-CDA
program release. You may also enter an OID or search terms in the Query box. Then, click the
&ldquo;Search&rdquo; button.<br /><br /><img id="16asearchvs"
src=" /vsac/support/usingvsac/16searchvs.png" class="img-fluid"
alt="Choose value sets to compare" /> <br /><br /></li>
<li>Then, click on the &ldquo;plus&rdquo; sign next to the value set that you would like to
select.
The &ldquo;plus&rdquo; sign becomes a &ldquo;minus&rdquo; sign. <br /><br /><img
id="17selectdefexp" src=" /vsac/support/usingvsac/17selectdefexp.png" class="img-fluid"
alt="Select definitions and expansions to compare " /> <br /><br /></li>
<li>Select the definition versions or expansion versions you would like to compare. In this
case,
three value set definitions are selected. Select the &ldquo;+Add Comparison Items&rdquo;
button.<br /><br /><img id="18selectdefexp"
src=" /vsac/support/usingvsac/18selectdefexp.png" class="img-fluid"
alt="Select definitions and expansions to compare" /> </li>
<li>Choose the &ldquo;Metadata&rdquo; tab in the &ldquo;Filter elements and review comparison
results&rdquo; section.</li>
<li>Select what you would like to see in the Comparison Result: All, Similar, or Different.</li>
<li>Click the &ldquo;Compare&rdquo; button.</li>
<li>In the results, you will see the value set metadata specified in the various definition
versions
for your chosen value set OID.</li>
<li>Export the results by selecting the "Export Comparison" button.<br /><br /><img
id="22ashowcompare" src=" /vsac/support/usingvsac/22showcompare.png" class="img-fluid"
alt="Show comparison result" />
<br /><br />
</li>
</ol>
<h5>Instant Comparisons Using VSAC &ldquo;Search Value Sets&rdquo;</h5>
<p>You may also use the VSAC &ldquo;Search Value Sets&rdquo; tab to search for a value set to
compare
metadata and codes between different versions of a value set.</p>
<ol class="">
<li>In the public, &ldquo;Search Value Sets&rdquo; tab, search for a value set either by
selecting a
program and release and/or other relevant filters. You can also enter an OID or search term
in
the Query box.</li>
<li>Select the &ldquo;Search&rdquo; button.</li>
<li>Click on the value set OID to compare metadata, or codes, between different versions of this
value set. <br /><br /><img id="20vsearchvstab"
src=" /vsac/support/usingvsac/20searchvstab.png" class="img-fluid"
alt="enter term in the search value sets tab" /> <br /><br /></li>
<li>Either compare value set expansion versions or definition versions</li>
<li>In this example, the Definition Version &ldquo;Compare Versions&rdquo; button is selected.
The
tool automatically compares the definition version shown (in this case, 20220219) with up to
two
other most recent definition versions of this value set. <br /><br /><img
id="21vsdetailsdef" src=" /vsac/support/usingvsac/21vsdetailsdef.png" class="img-fluid"
alt="value set details tab, then by the definition version is a compare versions button" />
<br /><br />
</li>
<li>In the example below, the comparison of the definition versions is automatically executed
for
the definition versions &ldquo;20220219&rdquo;, &ldquo;20210220&rdquo;, and
&ldquo;20200305&rdquo;.<br /><br /><img id="22showcompare"
src=" /vsac/support/usingvsac/22showcompare.png" class="img-fluid"
alt="Show comparison results is automatically executed for three most recent value set definition versions" />
<br /><br />
</li>
<li>You may also add more value set definition versions (for a total of 5) to compare. Open the
&ldquo;Choose value sets to compare&rdquo; section, search for and select a value set, and
then
select the definition versions you would like to add.</li>
</ol>
</div><!-- end accordion content-->
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-4">Compare Measures that Reference a
Value Set in Selected
Program Releases </button>
</h4>
<div id="valuesetcomparisontool-section-4" class="usa-accordion__content">
<ol class="">
<li>In the Comparison Tool, select the &ldquo;Program Releases&rdquo; option in the left side
bar.
</li>
<li>Select the &ldquo;Choose program releases to compare&rdquo; section.<br /><br /><img
id="23comppr" src=" /vsac/support/usingvsac/23comppr.png" class="img-fluid"
alt="Select the choose program releases to compare" /> <br /><br /></li>
<li>Search for a program release (eCQM only) by selecting a program and a release, or by
inserting a
release ID into the query box (e.g., eCQM Update 2022-05-05.)</li>
<li>Select the &ldquo;Search&rdquo; button.<br /><br /><img id="24releasesrch"
src=" /vsac/support/usingvsac/24releasesrch.png" class="img-fluid"
alt="Search by program to get the releases" /> <br /><br /></li>
<li>Select up to 5 releases that you would like to compare. Then click the &ldquo; Add
Comparison
Items&rdquo; button.<br /><br /><img id="30matchreleases"
src=" /vsac/support/usingvsac/30matchreleases.png" class="img-fluid"
alt="Select the releases to compare" /> <br /><br /></li>
<li>In the Value Set tab of the &ldquo;Filter elements and review comparison results&rdquo;
section,
select a Comparison Element: eCQM Identifier, CMS eMeasure ID, Value Set Definition Version,
Value Set Name, or Value Set Steward. (In this example, &ldquo;eCQM Identifier.&rdquo;)</li>
<li>Select what you would like to see in the Comparison Result: All, Similar, or Different. (In
this
example, &ldquo;Different&rdquo;.)</li>
<li>Select the &ldquo;Compare&rdquo; button.</li>
<li>In the results, you will see the program releases that you selected in step #5 and the
Comparison Element that you selected in step #6 for each value set OID.<br /><br /><img
id="26compareecqmid" src=" /vsac/support/usingvsac/26compareecqmid.png"
class="img-fluid"
alt="In the show comparison results you will see the programs releases that you selected" />
<br /><br />
</li>
<li>In the results, you may filter by OID or description. For example, filter the description
field
by &ldquo;creatinine&rdquo; to see value sets that have the word "creatinine" in the
description. Then, click on the &ldquo;eyeball&rdquo; icon for an OID to see more
specifically
which eCQM Identifiers specify a value set. We compress these results because there are many
cases where several eCQM Identifiers specify a value set. <br /><br /><img
id="27detailsecqmupdate" src=" /vsac/support/usingvsac/27detailsecqmupdate.png"
class="img-fluid"
alt="Click on the eyeball icon for an OID to view which eCQM Identifier specify a value set" />
<br /><br />
</li>
<li>When I select the &ldquo;eyeball&rdquo; icon, the following measures (eCQM Identifiers) are
displayed for OID 2.16.840.1.113883.3.666.5.2363.<br /><br /><img id="28details"
src=" /vsac/support/usingvsac/28details.png" class="img-fluid"
alt="When I select the &ldquo;eyeball&rdquo; icon, the following measures (eCQM Identifiers) are displayed for OID 2.16.840.1.113883.3.666.5.2363" />
<br /><br />
</li>
</ol>
</div><!-- end accordion content-->
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-5">Compare Measure Versions between
Different Program
Releases </button>
</h4>
<div id="valuesetcomparisontool-section-5" class="usa-accordion__content">
<ol class="">
<li>In the Comparison Tool, select the &ldquo;Program Releases&rdquo; option in the left side
bar.
</li>
<li>Select the &ldquo;Choose program releases to compare&rdquo; section. <br /><br /><img
id="23acomppr" src=" /vsac/support/usingvsac/23comppr.png" class="img-fluid"
alt="Select the choose program releases to compare" /> <br /><br /></li>
<li>Search for a release by selecting an eCQM program and/or inserting a release ID in the query
box
(e.g., eCQM Update 2022-05-05). Then, click the &ldquo;Search&rdquo; button.</li>
<li>Select up to 5 releases that you would like to compare. Then click the &ldquo;+ Add
Comparison&rdquo; button.<br /><br /><img id="30amatchreleases"
src=" /vsac/support/usingvsac/30matchreleases.png" class="img-fluid"
alt="Select the releases to compare" /> <br /><br /></li>
<li>In the Measure tab of the &ldquo;Filter elements and review comparison results&rdquo;
section,
select a Comparison Element: eCQM Identifier or eCQM Version Number.</li>
<li>Select: All, Similar, or Different.</li>
<li>Select the &ldquo;Compare&rdquo; button.</li>
<li>If you selected the &ldquo;eCQM Version Number&rdquo; you will see the eCQM Version Numbers
for
each eCQM Identifier that are specified in the releases that you selected to compare. You
can
filter by the eCQM Identifier or Description columns to quickly find specific measure
information. <br /><br /><img id="31compecqmvernum"
src=" /vsac/support/usingvsac/31compecqmvernum.png" class="img-fluid"
alt="value set tab show comparison results with the comparison element is eCQM Version Number " />
<br /><br />
</li>
</ol>
</div><!-- end accordion content-->
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-6">Compare Value Set OIDs in Selected
eCQM Measure Versions</button>
</h4>
<div id="valuesetcomparisontool-section-6" class="usa-accordion__content">
<p>Select a specific CMS eMeasure ID to compare measure-specified value set OIDs in selected measure
versions. For example, CMS104v10, CMS104v9, CMS104v8, and CMS104v7.</p>
<ol class="">
<li>In the Comparison Tool, select the &ldquo;CMS Quality Measures&rdquo; option in the left
side bar.</li>
<li>Select the &ldquo;Choose eCQMs to compare&rdquo; section.<br /><br /><img
id="32compecqmeasure" src=" /vsac/support/usingvsac/32compecqmeasure.png"
class="img-fluid" alt="Choose eCQMs to compare" />
<br /><br />
</li>
<li>Search for a specific measure by selecting a program and/or inserting a CMS eCQM ID into the
query box.</li>
<li>Select the &ldquo;Search&rdquo; button. <br /><br /><img id="33aecqmidsrch"
src=" /vsac/support/usingvsac/33aecqmidsrch.png" class="img-fluid"
alt="To select an eCQM to compare search by CMS eCQM Measure ID" /> <br /><br /></li>
<li>Select up to 5 CMS eCQM IDs (measure versions) that you would like to compare.</li>
<li>Select the &ldquo;+ Add Comparison Items&rdquo; button.<br /><br /><img id="34matchecqmnumb"
src=" /vsac/support/usingvsac/34matchecqmnumb.png" class="img-fluid"
alt="To select an eCQM to compare search by CMS eCQM Measure ID" /> <br /><br /></li>
<li>In the &ldquo;Filter elements and review comparison results&rdquo; section, select the
comparison element, &ldquo;Value Set OID.&rdquo;</li>
<li>Select what you would like to view in the comparison result: All, Similar, or Different.
</li>
<li>Click the "Compare" button.</li>
<li>In the results, you will see which value set OIDs are specified by each eCQM Measure
version. In
this example, in the first row, value set OID 2.16.840.1.113762.1.4.1110.52, is specified by
CMS104v10 and CMS104v9. However, CMS104v8 and CMS104v7 do not include value set OID
2.16.840.1.113762.1.4.1110.52.<br /> <br />
<img id="35compvsoid.png" src=" /vsac/support/usingvsac/35compvsoid.png" class="img-fluid"
alt="The comparison results shows value sets specified by CMS measure 104 versions" />
<br /><br />
</li>
</ol>
</div>
<h4 class="usa-accordion__heading">
<button class="usa-accordion__button" type="button" aria-expanded="false"
aria-controls="valuesetcomparisontool-section-7">Compare Codes in Selected
eCQM Measure Versions</button>
</h4>
<div id="valuesetcomparisontool-section-7" class="usa-accordion__content">
<p>Select a specific CMS eMeasure ID to compare codes in selected measure
versions. For example, CMS104v10, CMS104v11, and CMS104v12.</p>
<ol class="">
<li>In the Comparison Tool, select the &ldquo;CMS Quality Measures&rdquo; option in the left
side bar.</li>
<li>Select the &ldquo;Choose eCQMs to compare&rdquo; section.<br /><br /><img
id="40compecqmeasure" src=" /vsac/support/usingvsac/40compecqmeasure.png"
class="img-fluid" alt="Choose eCQMs to compare" />
<br /><br />
</li>
<li>Search for a specific measure by selecting a program and/or inserting a CMS eCQM ID into the
query box.</li>
<li>Select the &ldquo;Search&rdquo; button. <br /><br /><img id="41ecqmidsrch"
src=" /vsac/support/usingvsac/41ecqmidsrch.png" class="img-fluid"
alt="To select an eCQM to compare search by CMS eCQM Measure ID" /> <br /><br /></li>
<li>Select up to 5 CMS eCQM IDs (measure versions) that you would like to compare.</li>
<li>Select the &ldquo;+ Add Comparison Items&rdquo; button.<br /><br /><img id="37matchecqmnumb"
src=" /vsac/support/usingvsac/37matchecqmnumb.png" class="img-fluid"
alt="To select an eCQM to compare search by CMS eCQM Measure ID" /> <br /><br /></li>
<li>Select the Code tab. In the new Comparison Element, CODE will be selected. </li>
<li>Select what you would like to view in the comparison result: All, Similar, or Different.</li>
<li>Click the "Compare" button. </li>
<li>In the results, you will see which codes are specified by each eCQM Measure version. <br/> <br/> <img id="39compvsoid.png"
src=" /vsac/support/usingvsac/39compvsoid.png" class="img-fluid"
alt="To select an eCQM to compare search by CMS eCQM Measure ID" /> </li>
</ol>
</div><!-- end accordion content-->
</div><!-- end accordion -->
<div>
<br />
<p>You can access the Comparison Tool functions in several places in the VSAC user interface:</p>
<ul>
<li><strong>Comparison Tool button</strong> in the upper right area of the Search Value Sets screen</li>
<li><strong>Compare Releases button</strong> at the Program Release level of the screen, and
<strong>Compare
Versions button</strong> in the Value Sets tab. <br /><br /><img id="1comparefunctions"
src=" /vsac/support/usingvsac/1comparefunctions.png" class="img-fluid"
alt="VSAC Search Value Sets tab showing 1 comparison tool button 1 compare releases button and 2 compare version buttons" />
<br /><br />
</li>
<li><strong>Compare</strong> button in the Measure option of the Value Set Details tab <br /><br /><img
id="36comparefunction" src=" /vsac/support/usingvsac/36comparefunction.png" class="img-fluid"
alt="VSAC Search Value Sets tab measure option click the compare button to view the latest 3 versions of the measure and the value set OIDs specified by the measure versions in the Comparison tool" />
<br /><br />
</li>
</ul>
</div>
</div><!-- end column-->
</div><!-- end row-->
<p class=”margin-top-5”><small>Last Reviewed: May 1, 2023</small></p>
</div>
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