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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>The University of Maryland Medical System ("UMMS") prepares the IRS Form 990 for UMMS and its affiliates. Information needed to complete the return is gathered by accounting personnel in the Finance Shared Services department under the supervision of the UMMS Tax Director. Draft returns are prepared using IRS-approved tax software. Once a draft return is prepared, it undergoes multiple levels of review both internally by UMMS tax &amp; finance personnel, and externally by Ernst &amp; Young LLP. Following any necessary changes to the return, a final draft is reviewed by each affiliate's vice president of finance and/or CFO. Prior to filing the IRS Form 990, the organization's board chairman, treasurer, governance committee, finance committee or other member(s) of the board with similar authority will review the IRS Form 990. All board members are provided with a copy of the final IRS Form 990 before filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>The filing organization follows the University of Maryland Medical System (UMMS) Conflicts of Interest Policy, which requires that all Covered Persons disclose conflicts of interest or potential conflicts of interest between their personal interests and the interests of the organization, or any entity controlled by or owned in substantial part by the organization. Covered Persons means any member of the organization's Board of Directors, a member of a committee of the Board, an officer, or an employee of organization (including subsidiaries) at the VP level or above. The organization (or its sole member) is responsible for administering and enforcing the Conflicts of Interest Policy (Policy). The Governance Committee (or other Board committee having similar authority) reviews any and all conflicts, shall report annually to the full Board on the administration, infractions, and enforcement of the Policy and shall report at the earliest opportunity all matters of concern to the full Board in executive session while interested parties are recused. The organization or its sole member's Compliance Officer is the responsible administrative authority to assist the Board in administering and enforcing the Conflicts of Interest Policy and bringing concerns to the oversight committee. A questionnaire which discloses potential conflicts of interest is distributed annually to Covered Persons. The Chief Compliance Officer of the University of Maryland Medical System Corporation (UMMS) distributes and collects the responses for UMMS and other affiliates, and may be called for consult when potential conflicts are disclosed. If the oversight Committee determines that a Conflict of Interest exists, the Committee shall notify the Covered Person and the organization's Board Chair, and further will notify the full Board at its next meeting. Furthermore, in the event the Committee determines that an actual or perceived Conflict of Interest exists, the Committee shall decide how to address the Conflict of Interest. If the Committee determines that a Conflict of Interest exists but that the organization may enter into the subject transaction or arrangement, the interested Covered Person shall be recused from all deliberations and decisions concerning said transaction or arrangement, any arrangements with that entity, and compensation or benefits for officers, directors, and trustees. Furthermore, the Chair of the Board and the Chairs of the oversight Committee and the Audit and Compliance Committee shall not have any Business Transactions with UMMS, nor shall their Family Members. If the oversight Committee determines that a Covered Person has used their position to accrue Excess Benefits or to knowingly assist others in accruing Excess Benefits in any way at the expense of the organization, the Committee shall recommend to the Executive Committee appropriate corrective action to be taken.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S GOVERNING DOCUMENTS ARE MADE PUBLICLY AVAILABLE THROUGH THE STATE OF MARYLAND VIA THE SECRETARY OF STATE'S OFFICE. THE CONFLICT OF INTEREST POLICY IS GENERALLY AVAILABLE ON THE ORGANIZATION'S OR AFFILIATE'S WEBSITE. FINANCIAL STATEMENTS ARE MADE PUBLICLY AVAILABLE ON A QUARTERLY BASIS THROUGH FILINGS ON THE ELECTRONIC MUNICIPAL MARKET ACCESS ("EMMA") SYSTEM.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR" softwareId="22016089" softwareVersionNum="2022v5.0">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MT WASHINGTON PEDIATRIC HOSPITAL</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1708 WEST ROGERS AVE</AddressLine1Txt>
          <CityNm>BALTIMORE</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21209</ZIPCd>
        </USAddress>
        <EIN>520591483</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MD</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>true</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
