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        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>The accounting standard on accounting for uncertainty in income taxes addresses the determination of whether tax benefits claimed or expected to be claimed on a tax return should be recorded in the consolidated financial statements. Under this guidance, HiMSS may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities, based on the technical merits of the position. Examples of tax positions include the tax-exempt status of HiMSS, and various positions related to the potential sources of unrelated business taxable income (UBTI). The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate settlement. There were no unrecognized tax benefits identified or recorded as liabilities during the reporting periods presented herein. HiMSS files a Form 990 in the U.S. federal jurisdiction and the State of Illinois. These returns are generally no longer subject to examination by the Internal Revenue Service for tax years before 2012.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
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        <RegionTxt>Europe</RegionTxt>
        <OfficesCnt>1</OfficesCnt>
        <EmployeeCnt>10</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Program Services</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>Educational Conferences</SpecificServicesProvidedTxt>
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      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Europe</RegionTxt>
        <OfficesCnt>1</OfficesCnt>
        <EmployeeCnt>13</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Program Services</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>Data Analytics and Consulting</SpecificServicesProvidedTxt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
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        <EmployeeCnt>6</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Program Services</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
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        <EmployeeCnt>1</EmployeeCnt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Middle East and North Africa</RegionTxt>
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        <EmployeeCnt>0</EmployeeCnt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>South America</RegionTxt>
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        <EmployeeCnt>0</EmployeeCnt>
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      <SubtotalEmployeesCnt>30</SubtotalEmployeesCnt>
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    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
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        <RecipientBusinessName>
          <BusinessNameLine1Txt>HiMSS Foundation</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>33 West Monroe Street Ste 1700</AddressLine1Txt>
          <CityNm>Chicago</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60603</ZIPCd>
        </USAddress>
        <RecipientEIN>364008359</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>85000</CashGrantAmt>
        <PurposeOfGrantTxt>General Support</PurposeOfGrantTxt>
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      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization made contributions to a related 501(c)(3) entity with a similar mission for the general support of the organization. Since the funds are to be used for the general support of their mission, and HiMSS has control over the related entity, HiMSS does not require the organization to substantiate their expenditures related to these contributions.</ExplanationTxt>
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    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
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      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>1</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>H Stephen Lieber</PersonNm>
        <TitleTxt>President/CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>794625</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>103125</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>11779</OtherCompensationFilingOrgAmt>
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        <DeferredCompensationFlngOrgAmt>158234</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>1091901</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Dennis James</PersonNm>
        <TitleTxt>CFO</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>21915</DeferredCompensationFlngOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Carla Smith</PersonNm>
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        <DeferredCompensationFlngOrgAmt>103290</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>R Norris Orms</PersonNm>
        <TitleTxt>Executive Vice President</TitleTxt>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <DeferredCompensationFlngOrgAmt>94906</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>586389</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John Hoyt</PersonNm>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jeremy Bonifini</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John Whelan</PersonNm>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Blaine Newton</PersonNm>
        <TitleTxt>Senior Vice President</TitleTxt>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Alisa Ray</PersonNm>
        <TitleTxt>Senior Director</TitleTxt>
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        <PersonNm>Danielle Hartley</PersonNm>
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        <PersonNm>Charles Parker</PersonNm>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John Daniels</PersonNm>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>HiMSS pays disability insurance to the individuals listed below where reimbursements are paid as gross-up amounts. These amounts are reported as taxable payments to the employees on their Form W-2 or 1099 in the amounts per their contracts with HiMSS: - H. Stephen Lieber, President/CEO - John P Hoyt, EVP - Jeremy Bonifini, EVP</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Lines 4a-b</FormAndLineReferenceDesc>
        <ExplanationTxt>Line 4a: Alisa Ray received a severance payment in December 2014 in the amount of $155,571. Line 4b: The following individuals accrued benefits under a supplemental nonqualified retirement plan: - H Stephen Lieber, 457(f) Deferred Comp Plan, $142,634 - Carla Smith, 457(f) Deferred Comp Plan, $75,600 - R. Norris Orms, 457(f) Deferred Comp Plan, $67,216 - John Hoyt, 457(f) Deferred Comp Plan, $18,850 - Jeremy Bonfini, 457(f) Deferred Comp Plan, $25,100 - Dennis James, 457(f) Deferred Comp Plan, $8,800</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>More than 60,000 individual members, of which three-fourths work in healthcare provider, governmental and not-for-profit organizations. HiMSS also includes over 700 corporate members and approximately 400 not-for-profit organizations that share our mission of transforming healthcare through the effective use of information technology and management systems. Members elect Board of Directors and vote on any Bylaw changes, but do not receive any share of the organization's profit.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Regular members, life members, members emeritus and organizational members have the right to vote to appoint a member of the organization's governing body. Eligible members receive a ballot from the President/CEO listing all candidates in random order. After the balloting period is closed, tabulation of the votes is conducted by independent persons who are neither members nor employees of the organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>Members vote on any Bylaw changes proposed by the board of directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>A copy of Form 990 is provided electronically to each voting member of the organization's governing body before it is filed. Voting members of the governing body then communicate and resolve questions with the Chief Financial Officer regarding the Form 990 prior to its filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members and key employees are annually required to complete a conflict of interest disclosure statement. The President/CEO reviews each statement of disclosure for any set of facts or circumstances that may reflect an actual, potential or apparent conflict of interest. The President/CEO may request the assistance of legal counsel to identify potential conflicts. If the President/CEO identifies an actual, potential or apparent conflict of interest with respect to an officer, director, nominee for director, nominee for an elected position and/or nominee for appointment to the board, he/she must pursue resolution of such conflict of interest or challenge in accordance with Article 10, Section 10.3 of the HiMSS Bylaws. For the organization's employees the President/CEO may take one of the following actions to resolve such conflict or challenge: (1) waive the conflict of interest as unlikely to affect disclosing party's ability to act in the best interests of the organization, (2) determine the disclosing party should be recused from all deliberation and decision-making related to the particular transaction or relationship that gives rise to the conflict of interest [this course of action should particularly apply when the transaction or relationship is one which presents a conflict only with respect to one or two discrete programs or activities], (3) recommend the disclosing party resign from his or her employment [this course of action should apply when the conflict is so pervasive the disclosing party would seldom, if ever, be able to act solely in the best interest of the organization].</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The compensation committee, which consists of certain members of the organization's governing body as appointed by that governing body, meet to review and approve compensation levels for the President/CEO and other top management executives. The compensation committee employs the services of an independent consulting firm to assist in determining compensation levels for the executive management team. The independent consulting firm utilizes data from comparable organizations in its review. All compensation decisions are documented.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's Articles of Incorporation and Bylaws are available upon request for the same period of disclosure as set forth in IRC Section 6104(d).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Loss on impairment of CapSite LLC goodwill -2,018,597. Other net asset adjustments -1,898,580. Loss on impairment of CapSite LLC intangible assets -1,137,333. Exchange loss -23,174.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>HiMSS Analytics LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>33 W Monroe Street Ste 1700</AddressLine1Txt>
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        <PrimaryActivitiesTxt>Healthcare IT Data &amp; Analytics</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
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        <EndOfYearAssetsAmt>2000000</EndOfYearAssetsAmt>
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          <BusinessNameLine1Txt>HiMSS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MedTech Publishing Company LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <ZIPCd>04101</ZIPCd>
        </USAddress>
        <EIN>571148916</EIN>
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        <TotalIncomeAmt>13032961</TotalIncomeAmt>
        <EndOfYearAssetsAmt>11808657</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>HiMSS</BusinessNameLine1Txt>
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      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Personal Connected Health Alliance LLC</BusinessNameLine1Txt>
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        <LegalDomicileForeignCountryCd>GM</LegalDomicileForeignCountryCd>
        <TotalIncomeAmt>2377846</TotalIncomeAmt>
        <EndOfYearAssetsAmt>2136705</EndOfYearAssetsAmt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
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        </USAddress>
        <EIN>364008359</EIN>
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        <LegalDomicileStateCd>IL</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 7</PublicCharityStatusTxt>
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      <IdRelatedOrgTxblCorpTrGrp>
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        <USAddress>
          <AddressLine1Txt>1193 South Brownell Road</AddressLine1Txt>
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        <ShareOfEOYAssetsAmt>601419</ShareOfEOYAssetsAmt>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
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        </RelatedOrganizationName>
        <ForeignAddress>
          <AddressLine1Txt>2 Whitehall Quay</AddressLine1Txt>
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          <CountryCd>UK</CountryCd>
          <ForeignPostalCd>LS1 4HG</ForeignPostalCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>Heatlhcare Media Products/Services</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>UK</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
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        <ShareOfEOYAssetsAmt>1969791</ShareOfEOYAssetsAmt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Citadel Events Ltd</BusinessNameLine1Txt>
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        <ForeignAddress>
          <AddressLine1Txt>13-15 Albert Street</AddressLine1Txt>
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          <CountryCd>UK</CountryCd>
          <ForeignPostalCd>HG1 1JX</ForeignPostalCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>Healthcare IT Events</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>UK</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
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        </DirectControllingEntityName>
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      </IdRelatedOrgTxblCorpTrGrp>
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      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>1</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>1</LoansOrGuaranteesFromOthOrgInd>
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      <AssetExchangeInd>0</AssetExchangeInd>
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      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
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      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
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          <BusinessNameLine1Txt>HiMSS Foundation</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
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  </ReturnData>
</Return>