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  <xsd:element abstract="false" id="vcyt_ConvertiblePreferredStockIssuedIssuanceCosts" name="ConvertiblePreferredStockIssuedIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ConversionOfPreferredStockWarrantLiabilityAmountConverted" name="ConversionOfPreferredStockWarrantLiabilityAmountConverted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_CommonStockIssuedIssuanceCosts" name="CommonStockIssuedIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_StockBasedCompensationTransferToEquity" name="StockBasedCompensationTransferToEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_IncreaseDecreaseInConvertiblePreferredStockAndStockholdersEquityRollForward" name="IncreaseDecreaseInConvertiblePreferredStockAndStockholdersEquityRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <element id="vcyt_ConvertiblePreferredStockOriginalIssuePrice" name="ConvertiblePreferredStockOriginalIssuePrice" nillable="true" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element abstract="true" id="vcyt_DerivativeFinancialInstrumentsLiabilitiesPreferredStockLiabilityMember" name="DerivativeFinancialInstrumentsLiabilitiesPreferredStockLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_DerivativeFinancialInstrumentsLiabilitiesPreferredStockWarrantLiabilityMember" name="DerivativeFinancialInstrumentsLiabilitiesPreferredStockWarrantLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_EmployeeNewlyHiredMember" name="EmployeeNewlyHiredMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingPowerOfAllClassesOfStock" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingPowerOfAllClassesOfStock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentageYearOne" name="SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentageYearOne" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_TransferOfPreferredStockLiabilityToEquity" name="TransferOfPreferredStockLiabilityToEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_FairValueOfPreferredStockWarrants" name="FairValueOfPreferredStockWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_IncentiveStockOptionsMember" name="IncentiveStockOptionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_NonStatutoryStockOptionsMember" name="NonStatutoryStockOptionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="vcyt_OutsideDirectorWhoWasNotPreviouslyEmployeeMember" name="OutsideDirectorWhoWasNotPreviouslyEmployeeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_CommonStockDiscountOnSharesAndCommissions" name="CommonStockDiscountOnSharesAndCommissions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <element id="vcyt_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationConversion" name="FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationConversion" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element abstract="true" id="vcyt_OutsideDirectorMember" name="OutsideDirectorMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsInitialGrants" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsInitialGrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrants" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ExtinguishmentOfPreferredStockLiability" name="ExtinguishmentOfPreferredStockLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_ProceedsFromIssuanceInitialPublicOfferingNet" name="ProceedsFromIssuanceInitialPublicOfferingNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="false" id="vcyt_OfferingExpenses" name="OfferingExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="vcyt_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <element id="vcyt_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element abstract="false" id="vcyt_CommonStockCapitalAdditionalSharesReservedForFutureIssuance" name="CommonStockCapitalAdditionalSharesReservedForFutureIssuance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="false" id="vcyt_InitialPublicOfferingCostsIncludedInAccountsPayableAndAccruedLiabilities" name="InitialPublicOfferingCostsIncludedInAccountsPayableAndAccruedLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <element id="vcyt_StockIssuedDuringPeriodSharesWarrantsExercised" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_OtherIncomeRentReimbursement" name="OtherIncomeRentReimbursement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_DebtInstrumentEndOfTermPaymentInterestAmount" name="DebtInstrumentEndOfTermPaymentInterestAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementCoPromotionFeesPercentageOfCashReceiptsRemainingPeriods" name="CollaborativeArrangementCoPromotionFeesPercentageOfCashReceiptsRemainingPeriods" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementCoPromotionFeesPercentageOfCashReceipts" name="CollaborativeArrangementCoPromotionFeesPercentageOfCashReceipts" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_AllegroDiagnosticsCorpMember" name="AllegroDiagnosticsCorpMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInProcessResearchAndDevelopment" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInProcessResearchAndDevelopment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ScheduleOfComponentsOfAcquisitionConsiderationTableTextBlock" name="ScheduleOfComponentsOfAcquisitionConsiderationTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_BusinessAcquisitionNumberOfSharesReceivedForEachSubsidiaryShare" name="BusinessAcquisitionNumberOfSharesReceivedForEachSubsidiaryShare" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_BusinessAcquisitionRightToReceiveUponCancellationOfPreferredStockNumberOfShares" name="BusinessAcquisitionRightToReceiveUponCancellationOfPreferredStockNumberOfShares" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_BusinessAcquisitionRightToReceiveUponCancellationOfPreferredStockCash" name="BusinessAcquisitionRightToReceiveUponCancellationOfPreferredStockCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_IndefiniteLivedInProcessResearchAndDevelopment" name="IndefiniteLivedInProcessResearchAndDevelopment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_PaymentsToAcquireBusinessesSettlementOfLiabilitiesIncurred" name="PaymentsToAcquireBusinessesSettlementOfLiabilitiesIncurred" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TransactionBonusesOtherPaymentsToEmployeesAndAcquisitionRelatedExpensesMember" name="TransactionBonusesOtherPaymentsToEmployeesAndAcquisitionRelatedExpensesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_InterestExpenseRelatedToIndebtednessOfAcquiredEntityMember" name="InterestExpenseRelatedToIndebtednessOfAcquiredEntityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TermLoanTrancheOneMember" name="TermLoanTrancheOneMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TermLoanTrancheTwoMember" name="TermLoanTrancheTwoMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TermLoanTrancheThreeMember" name="TermLoanTrancheThreeMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_NumberOfTranches" name="NumberOfTranches" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TermLoanMember" name="TermLoanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_TermLoanDue2017Member" name="TermLoanDue2017Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_DebtInstrumentPrepaymentPremium" name="DebtInstrumentPrepaymentPremium" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_DebtInstrumentThirdPartyFeeAmountPaid" name="DebtInstrumentThirdPartyFeeAmountPaid" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_StockIssuedDuringPeriodValueWarrantsExercised" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ClassOfWarrantOrRightWarrantsExercised" name="ClassOfWarrantOrRightWarrantsExercised" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LongTermDebtAndAccruedEndOfTermPayment" name="LongTermDebtAndAccruedEndOfTermPayment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_PaymentOfEndOfTermObligation" name="PaymentOfEndOfTermObligation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_StockIssuedExerciseOfCommonStockWarrants" name="StockIssuedExerciseOfCommonStockWarrants" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_NumberOfSuppliersWithPurchaseObligations" name="NumberOfSuppliersWithPurchaseObligations" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementCopromotionAfirmaThyroidDiagnosticSolutionMember" name="CollaborativeArrangementCopromotionAfirmaThyroidDiagnosticSolutionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementCopromotionAfirmaGecMember" name="CollaborativeArrangementCopromotionAfirmaGecMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_AgreementTermsNonRenewalNoticePeriod" name="AgreementTermsNonRenewalNoticePeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_HeadquartersAndLaboratoryFacilitiesSouthSanFranciscoMember" name="HeadquartersAndLaboratoryFacilitiesSouthSanFranciscoMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementCoPromotionFeesPercentageOfNetRevenue" name="CollaborativeArrangementCoPromotionFeesPercentageOfNetRevenue" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CollaborativeArrangementTerm" name="CollaborativeArrangementTerm" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LaboratoryFacilitiesAustinTexasMember" name="LaboratoryFacilitiesAustinTexasMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ConcentrationRiskAbstract" name="ConcentrationRiskAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_DeferredTaxAssetsAccrualsDeferredRentAndOther" name="DeferredTaxAssetsAccrualsDeferredRentAndOther" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_AgreementTerminationNotice" name="AgreementTerminationNotice" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_RevenueRecognizedOnAccrualBasis" name="RevenueRecognizedOnAccrualBasis" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_RevenueRecognizedReceivedInCash" name="RevenueRecognizedReceivedInCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_OperatingLossCarryforwardsStockBasedCompensation" name="OperatingLossCarryforwardsStockBasedCompensation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_EmployeeStockOptionExcludingBonusCompensationMember" name="EmployeeStockOptionExcludingBonusCompensationMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_NonEmployeeStockOptionMember" name="NonEmployeeStockOptionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LesseeLeasingArrangementsOperatingLeasesSpaceLeased" name="LesseeLeasingArrangementsOperatingLeasesSpaceLeased" nillable="true" type="num:areaItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_StockIssuedAndSoldDuringPeriodSharesInPrivatePlacement" name="StockIssuedAndSoldDuringPeriodSharesInPrivatePlacement" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_PlacementAgentFeesAndOtherExpenses" name="PlacementAgentFeesAndOtherExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_HeadquartersAndLaboratoryFacilitiesSouthSanFranciscoLeaseTwoMember" name="HeadquartersAndLaboratoryFacilitiesSouthSanFranciscoLeaseTwoMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsOther" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsOther" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_SalesRevenueGrossMember" name="SalesRevenueGrossMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CommonStockAbstract" name="CommonStockAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_EmployeeStockPurchasePlanAbstract" name="EmployeeStockPurchasePlanAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriodMaximum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriodMaximum" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumValueOfSharesPerEmployee" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumValueOfSharesPerEmployee" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_FiniteLivedIntangibleAssetsAnnualAmortizationExpenseNextFiveYears" name="FiniteLivedIntangibleAssetsAnnualAmortizationExpenseNextFiveYears" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_OperatingLeasesFutureStraightLineExpensePerQuarter" name="OperatingLeasesFutureStraightLineExpensePerQuarter" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_FiniteLivedIntangibleAssetsAnnualAmortizationExpense" name="FiniteLivedIntangibleAssetsAnnualAmortizationExpense" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ProceedsFromIssuanceOfPrivatePlacementGross" name="ProceedsFromIssuanceOfPrivatePlacementGross" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ScheduleOfRevenueRecognitionCashAndAccrualBasisTableTextBlock" name="ScheduleOfRevenueRecognitionCashAndAccrualBasisTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_PaymentsOfStockIssuanceCostsInitialPublicOffering" name="PaymentsOfStockIssuanceCostsInitialPublicOffering" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_PaymentsOfStockIssuanceCostsDeferredStockOfferingCosts" name="PaymentsOfStockIssuanceCostsDeferredStockOfferingCosts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LeaseholdImprovementsEstimateExcludingTenantAllowance" name="LeaseholdImprovementsEstimateExcludingTenantAllowance" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LiquidityAbstract" name="LiquidityAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_EmployeeStockOptionAnnualBonusCompensationMember" name="EmployeeStockOptionAnnualBonusCompensationMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationESPP" name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationESPP" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LiquidityLineItems" name="LiquidityLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_StockIssuedAndSoldDuringPeriodValueInPrivatePlacement" name="StockIssuedAndSoldDuringPeriodValueInPrivatePlacement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_CommonStockIssuedIssuanceCostsPrivatePlacement" name="CommonStockIssuedIssuanceCostsPrivatePlacement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_LeaseholdImprovementsEstimateNextFiscalYear" name="LeaseholdImprovementsEstimateNextFiscalYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="vcyt_DebtInstrumentEndOfTermBalloonPaymentAmount" name="DebtInstrumentEndOfTermBalloonPaymentAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
</xsd:schema>
