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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>BMC HEALTH SYSTEM, INC. RELIED ON BOSTON MEDICAL CENTER (BMC), A RELATED ORGANIZATION OF BMC HEALTH SYSTEM, INC., TO ESTABLISH ITS PRESIDENT/CEO'S COMPENSATION. ALL METHODS INCLUDED ON LINE 3 ARE UTILIZED BY BMC TO ESTABLISH THE PRESIDENT/CEO'S COMPENSATION. SCHEDULE J, PART I, LINE 4B BOSTON MEDICAL CENTER PROVIDES A SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN TO CERTAIN EXECUTIVES. AMOUNTS ARE CREDITED TO PARTICIPANTS' ACCOUNTS EACH YEAR. PLAN AMOUNTS ARE SUBJECT TO FORFEITURE AND PAYMENT ONLY IF CERTAIN CONDITIONS ARE MET, AS OUTLINED IN THE PLAN AGREEMENT. NO AMOUNTS BECAME VESTED OR WERE PAID IN CALENDAR YEAR 2013. BMC PROVIDED A SEPARATE SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN TO KATHLEEN E. WALSH, PRESIDENT AND CEO AS OF MARCH 1, 2010. PURSUANT TO THE TERMS OF THE AGREEMENT, certain amounts were credited to the President and CEO's account in prior years. THESE AMOUNTS ARE SUBJECT TO FORFEITURE AND PAYMENT WILL BE MADE ONLY IF CERTAIN CONDITIONS ARE MET, AS OUTLINED IN THE AGREEMENT. No amounts were accrued or vested under the plan in 2013.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>DAVID PASSAFARO KATHLEEN E. WALSH BUSINESS RELATIONSHIP EACH SERVES AS A DIRECTOR OF BOSTON MEDICAL CENTER INSURANCE COMPANY, LTD. CERTAIN OFFICERS AND DIRECTORS OF BMC Health System,Inc. ALSO SERVE AS OFFICERS AND DIRECTORS OF BOSTON MEDICAL CENTER, A RELATED ORGANIZATION. FORM 990, PART VI, LINE 11B BMC HEALTH SYSTEM, INC.'S FORM 990 IS PREPARED BY PRICEWATERHOUSECOOPERS (PWC) AND REVIEWED BY BOSTON MEDICAL CENTER'S (BMC) INTERNAL MANAGEMENT. FOLLOWING THAT REVIEW, BMC'S INTERNAL MANAGEMENT AND PWC PRESENT THE FORM 990 TO THE AUDIT COMMITTEE FOR REVIEW AND COMMENT. THE COMPLETED FORM 990 IS PROVIDED TO ALL MEMBERS OF THE BOARD OF TRUSTEES PRIOR TO THE FORM BEING FILED WITH THE IRS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFLICT OF INTEREST QUESTIONNAIRES FOR THE FISCAL YEAR ENDING SEPTEMBER 30, 2014 WERE DISTRIBUTED BY BMC'S CORPORATE COMPLIANCE DEPARTMENT. THE CHIEF COMPLIANCE OFFICER OR HER DESIGNEE QUERIES TRUSTEES, OFFICERS AND DIRECTORS ON AT LEAST AN ANNUAL BASIS REGARDING RELATIONSHIPS THAT MAY CREATE POTENTIAL CONFLICTS OF INTEREST. THE CHIEF COMPLIANCE OFFICER OR HER DESIGNEE REVIEWS ALL DISCLOSURES AND DETERMINES WHETHER THERE ARE ACTUAL OR POTENTIAL CONFLICTS OF INTEREST. THE CHIEF COMPLIANCE OFFICER OR HER DESIGNEE INFORMS THE GENERAL COUNSEL OF ANY ACTUAL OR POTENTIAL CONFLICTS OF INTEREST. THE GENERAL COUNSEL ADVISES THE BOARD OF TRUSTEES AND OFFICERS OF THE CORPORATION ACCORDINGLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 15A&amp;B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE OFFICERS ARE NOT COMPENSATED IN THEIR CAPACITY AS OFFICERS OF BMC HEALTH SYSTEM, INC. THEY ARE ALSO EMPLOYEES OF BOSTON MEDICAL CENTER ("BMC"), FOR WHICH THEY ARE COMPENSATED. THEREFORE, THEIR COMPENSATION AND BENEFITS ARE DETERMINED BY BMC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>BMC HEALTH SYSTEM, INC. DOES NOT MAKE ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, OR FINANCIAL STATEMENTS PUBLICLY AVAILABLE. HOWEVER, THE ARTICLES OF THE ORGANIZATION ARE POSTED ON THE SECRETARY OF THE COMMONWEALTH'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <City>BOSTON</City>
          <State>MA</State>
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      <GiftGrntOrCapContriToOthOrgInd>false</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>