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  <xs:element id="hcsg_OperatingLeaseRightOfUseAssetAccumulatedAmortization" abstract="false" name="OperatingLeaseRightOfUseAssetAccumulatedAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_LesseeOperatingLeaseTerminationOptionTerm" abstract="false" name="LesseeOperatingLeaseTerminationOptionTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="hcsg_RightOfUseAssetAndOperatingLeaseLiabilityDecreaseDueToCancellation" abstract="false" name="RightOfUseAssetAndOperatingLeaseLiabilityDecreaseDueToCancellation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_InvestmentRestrictionStatusAxis" abstract="true" name="InvestmentRestrictionStatusAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="hcsg_InvestmentRestrictionStatusDomain" abstract="true" name="InvestmentRestrictionStatusDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hcsg_UnrestrictedMember" abstract="true" name="UnrestrictedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hcsg_RestrictedMember" abstract="true" name="RestrictedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hcsg_InternationalMember" abstract="true" name="InternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_LargeCapBlendMember" abstract="true" name="LargeCapBlendMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_LargeCapGrowthMember" abstract="true" name="LargeCapGrowthMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_LargeCapValueMember" abstract="true" name="LargeCapValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_MidCapBlendMember" abstract="true" name="MidCapBlendMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_SmallCapBlendMember" abstract="true" name="SmallCapBlendMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_RestrictedStockAndRestrictedStockUnitsRSUsAndDeferredStockUnitsMember" abstract="true" name="RestrictedStockAndRestrictedStockUnitsRSUsAndDeferredStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_Amended2020OmnibusIncentivePlanMember" abstract="true" name="Amended2020OmnibusIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_RestrictedStockUnitsRSUsAndDeferredStockUnitsDSUsMember" abstract="true" name="RestrictedStockUnitsRSUsAndDeferredStockUnitsDSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hcsg_DeferredStockUnitsMember" abstract="true" name="DeferredStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPayoutPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPayoutPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardParticipantsElectingToReceiveShares" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardParticipantsElectingToReceiveShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="hcsg_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardRequisiteAverageWeeklyHoursofWork" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardAwardRequisiteAverageWeeklyHoursofWork" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="hcsg_DeferredCompensationPlanPercentageOfPreTaxIncomeAllowParticipantsToDefer" abstract="false" name="DeferredCompensationPlanPercentageOfPreTaxIncomeAllowParticipantsToDefer" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="hcsg_DeferredCompensationArrangementEmployerContributionPercentageOfParticipantDeferral" abstract="false" name="DeferredCompensationArrangementEmployerContributionPercentageOfParticipantDeferral" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="hcsg_DeferredCompensationPlanPercentageDeferralInCommonStock" abstract="false" name="DeferredCompensationPlanPercentageDeferralInCommonStock" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="hcsg_DeferredCompensationArrangementWithIndividualRemainingSharesAuthorizedForIssuance" abstract="false" name="DeferredCompensationArrangementWithIndividualRemainingSharesAuthorizedForIssuance" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="hcsg_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAdditionalDisclosuresOptionsOutstandingAbstractAbstract" abstract="true" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAdditionalDisclosuresOptionsOutstandingAbstractAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hcsg_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAdditionalDisclosuresOptionsExercisableAbstractAbstract" abstract="true" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAdditionalDisclosuresOptionsExercisableAbstractAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hcsg_DeferredCompensationUnrealizedGainLossRecordedWithinDeferredCompensationLiabilityAccount" abstract="false" name="DeferredCompensationUnrealizedGainLossRecordedWithinDeferredCompensationLiabilityAccount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_SegmentReportingInformationSegmentProfitMargin" abstract="false" name="SegmentReportingInformationSegmentProfitMargin" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hcsg_GainLossOnDeferredCompensationPlanInvestments" abstract="false" name="GainLossOnDeferredCompensationPlanInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_NumeratorAbstract" abstract="true" name="NumeratorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hcsg_DenominatorAbstract" abstract="true" name="DenominatorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hcsg_UnsecuredRevolvingLoanFacilityMember" abstract="true" name="UnsecuredRevolvingLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="hcsg_DebtInstrumentCovenantNumber" abstract="false" name="DebtInstrumentCovenantNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="hcsg_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption" abstract="false" name="LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_LineofCreditFacilityIncreaseDecreaseRemainingBorrowingCapacity" abstract="false" name="LineofCreditFacilityIncreaseDecreaseRemainingBorrowingCapacity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hcsg_AlignEngageLLCMember" abstract="true" name="AlignEngageLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
