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  <xsd:element name="ShareBasedCompensationBonusRelated" id="vcyt_ShareBasedCompensationBonusRelated" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInAccruedLiabilitiesAndDeferredRent" id="vcyt_IncreaseDecreaseInAccruedLiabilitiesAndDeferredRent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ServicesAgreementAbstract" id="vcyt_ServicesAgreementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeAndNonEmployeeStockOptionExcludingBonusCompensationMember" id="vcyt_EmployeeAndNonEmployeeStockOptionExcludingBonusCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeStockOptionBonusCompensationMember" id="vcyt_EmployeeStockOptionBonusCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConcentrationsOfCreditAndOtherRisksAndUncertaintiesPolicyTextBlock" id="vcyt_ConcentrationsOfCreditAndOtherRisksAndUncertaintiesPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MedicareMember" id="vcyt_MedicareMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AetnaMember" id="vcyt_AetnaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitedHealthcareMember" id="vcyt_UnitedHealthcareMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfMajorFinancialInstitutionsWithWhichCashAndCashEquivalentsDeposited" id="vcyt_NumberOfMajorFinancialInstitutionsWithWhichCashAndCashEquivalentsDeposited" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="AllowanceForDoubtfulAccountsAbstract" id="vcyt_AllowanceForDoubtfulAccountsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TemporaryEquityDisclosureTextBlock" id="vcyt_TemporaryEquityDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TemporaryEquityNumberOfSharesThatMayBeSoldInAdditionalClosings" id="vcyt_TemporaryEquityNumberOfSharesThatMayBeSoldInAdditionalClosings" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfAdditionalClosings" id="vcyt_NumberOfAdditionalClosings" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TemporaryEquityStockIssuedDuringPeriodShares" id="vcyt_TemporaryEquityStockIssuedDuringPeriodShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TestingAndEvaluationServicesExpense" id="vcyt_TestingAndEvaluationServicesExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentEndOfTermPaymentAmount" id="vcyt_DebtInstrumentEndOfTermPaymentAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DebtInstrumentEndOfTermPaymentAsPercentageOfTotalOutstandingPrincipal" id="vcyt_DebtInstrumentEndOfTermPaymentAsPercentageOfTotalOutstandingPrincipal" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantRollForward" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageGrantDateFairValue" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementDisclosureAbstract" id="vcyt_CollaborativeArrangementDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GenzymeCorporationMember" id="vcyt_GenzymeCorporationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DocumentAndEntityInformationAbstract" id="vcyt_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPriorNoticePeriodForTerminationOfAgreement" id="vcyt_CollaborativeArrangementPriorNoticePeriodForTerminationOfAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeStockOptionExcludingBonusCompensationMember" id="vcyt_EmployeeStockOptionExcludingBonusCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonEmployeeStockOptionMember" id="vcyt_NonEmployeeStockOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeStockOptionAnnualBonusCompensationMember" id="vcyt_EmployeeStockOptionAnnualBonusCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeStockOptionPerformanceBonusCompensationMember" id="vcyt_EmployeeStockOptionPerformanceBonusCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPercentageOfCashReceiptsOfCoPromotionFees" id="vcyt_CollaborativeArrangementPercentageOfCashReceiptsOfCoPromotionFees" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceDollars0.08Member" id="vcyt_ExercisePriceDollars0.08Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceDollars0.80Member" id="vcyt_ExercisePriceDollars0.80Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceDollars2.36Member" id="vcyt_ExercisePriceDollars2.36Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceDollars2.40Member" id="vcyt_ExercisePriceDollars2.40Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceDollars7.92Member" id="vcyt_ExercisePriceDollars7.92Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodOne" id="vcyt_CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodOne" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodTwo" id="vcyt_CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodTwo" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodThree" id="vcyt_CollaborativeArrangementPercentageOfCoPromotionFeeRepaidTerminationOfAgreementPeriodThree" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OrganizationAndSummaryOfSignificantAccountingPoliciesTable" id="vcyt_OrganizationAndSummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems" id="vcyt_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementCoPromotionExpenses" id="vcyt_CollaborativeArrangementCoPromotionExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementOutstandingObligation" id="vcyt_CollaborativeArrangementOutstandingObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfSharesOfPreferredStockWarrantsConverted" id="vcyt_ClassOfWarrantOrRightNumberOfSharesOfPreferredStockWarrantsConverted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightSharesOfCommonStockWarrantsIssuedUponConversionOfSharesOfPreferredStockWarrants" id="vcyt_ClassOfWarrantOrRightSharesOfCommonStockWarrantsIssuedUponConversionOfSharesOfPreferredStockWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceRangeFromDollars0.08ToDollars12.12Member" id="vcyt_ExercisePriceRangeFromDollars0.08ToDollars12.12Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConvertiblePreferredStock" id="vcyt_StockIssuedDuringPeriodValueConvertiblePreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConvertiblePreferredStock" id="vcyt_StockIssuedDuringPeriodSharesConvertiblePreferredStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalReclassificationOfPreferredStockWarrantLiability" id="vcyt_AdjustmentsToAdditionalPaidInCapitalReclassificationOfPreferredStockWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployee" id="vcyt_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonEmployee" id="vcyt_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonEmployee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalEquityBasedCompensation" id="vcyt_AdjustmentsToAdditionalPaidInCapitalEquityBasedCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalCommonStockSubjectToRepurchase" id="vcyt_AdjustmentsToAdditionalPaidInCapitalCommonStockSubjectToRepurchase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ConvertiblePreferredStockIssuedIssuanceCosts" id="vcyt_ConvertiblePreferredStockIssuedIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfPreferredStockWarrantLiabilityAmountConverted" id="vcyt_ConversionOfPreferredStockWarrantLiabilityAmountConverted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CommonStockIssuedIssuanceCosts" id="vcyt_CommonStockIssuedIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ConvertiblePreferredStockIssuanceCostsIncurredButNotYetPaid" id="vcyt_ConvertiblePreferredStockIssuanceCostsIncurredButNotYetPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockBasedCompensationTransferToEquity" id="vcyt_StockBasedCompensationTransferToEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" id="vcyt_NetProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfClosings" id="vcyt_NumberOfClosings" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TemporaryEquityNumberOfSharesThatMayBeSoldInInitialPurchase" id="vcyt_TemporaryEquityNumberOfSharesThatMayBeSoldInInitialPurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TemporaryEquityNumberOfSharesThatMayBeSoldInSecondClosing" id="vcyt_TemporaryEquityNumberOfSharesThatMayBeSoldInSecondClosing" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="IncreaseDecreaseInConvertiblePreferredStockAndStockholdersEquityRollForward" id="vcyt_IncreaseDecreaseInConvertiblePreferredStockAndStockholdersEquityRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConvertiblePreferredStockOriginalIssuePrice" id="vcyt_ConvertiblePreferredStockOriginalIssuePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="FairValueOfPreferredStockLiability" id="vcyt_FairValueOfPreferredStockLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DerivativeFinancialInstrumentsLiabilitiesPreferredStockLiabilityMember" id="vcyt_DerivativeFinancialInstrumentsLiabilitiesPreferredStockLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeFinancialInstrumentsLiabilitiesPreferredStockWarrantLiabilityMember" id="vcyt_DerivativeFinancialInstrumentsLiabilitiesPreferredStockWarrantLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborativeArrangementPaymentReceived" id="vcyt_CollaborativeArrangementPaymentReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="TemporaryEquityStockAuthorizedToBeIssuedAndSold" id="vcyt_TemporaryEquityStockAuthorizedToBeIssuedAndSold" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfStockSharesIssuedAsIfConverted" id="vcyt_ConversionOfStockSharesIssuedAsIfConverted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ConversionOfStockSharesIssuedAsIfConvertedConvertiblePreferredStockReservedForIssuance" id="vcyt_ConversionOfStockSharesIssuedAsIfConvertedConvertiblePreferredStockReservedForIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EmployeeNewlyHiredMember" id="vcyt_EmployeeNewlyHiredMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingPowerOfAllClassesOfStock" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingPowerOfAllClassesOfStock" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentageYearOne" id="vcyt_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentageYearOne" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TransferOfPreferredStockLiabilityToEquity" id="vcyt_TransferOfPreferredStockLiabilityToEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="FairValueOfPreferredStockWarrants" id="vcyt_FairValueOfPreferredStockWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncentiveStockOptionsMember" id="vcyt_IncentiveStockOptionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonStatutoryStockOptionsMember" id="vcyt_NonStatutoryStockOptionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OutsideDirectorWhoWasNotPreviouslyEmployeeMember" id="vcyt_OutsideDirectorWhoWasNotPreviouslyEmployeeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonStockDiscountOnSharesAndCommissions" id="vcyt_CommonStockDiscountOnSharesAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationConversion" id="vcyt_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationConversion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightTermOfWarrantsOrRights" id="vcyt_ClassOfWarrantOrRightTermOfWarrantsOrRights" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OutsideDirectorMember" id="vcyt_OutsideDirectorMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsInitialGrants" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsInitialGrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrants" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExtinguishmentOfPreferredStockLiability" id="vcyt_ExtinguishmentOfPreferredStockLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceInitialPublicOfferingNet" id="vcyt_ProceedsFromIssuanceInitialPublicOfferingNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="OfferingExpenses" id="vcyt_OfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" id="vcyt_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" id="vcyt_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonStockCapitalAdditionalSharesReservedForFutureIssuance" id="vcyt_CommonStockCapitalAdditionalSharesReservedForFutureIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ComponentsOfDeferredTaxAssetsCurrentAbstract" id="vcyt_ComponentsOfDeferredTaxAssetsCurrentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InitialPublicOfferingCostsIncludedInAccountsPayableAndAccruedLiabilities" id="vcyt_InitialPublicOfferingCostsIncludedInAccountsPayableAndAccruedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesWarrantsExercised" id="vcyt_StockIssuedDuringPeriodSharesWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
</xsd:schema>
