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    <link:label id="lab_moh_CashConvertibleSeniorNotesDue2020WarrantsMember_A215E0AAC1B300C7F70747276FEDA883_terseLabel_en-US" xlink:label="lab_moh_CashConvertibleSeniorNotesDue2020WarrantsMember_A215E0AAC1B300C7F70747276FEDA883" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">1.125% Warrants</link:label>
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    <link:label id="lab_us-gaap_SharesOutstanding_ADB35B92579EA3913BD247276FEEC325_label_en-US" xlink:label="lab_us-gaap_SharesOutstanding_ADB35B92579EA3913BD247276FEEC325" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares, Outstanding</link:label>
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_968B4F8537CFD438B8A247276FEF81D0_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_968B4F8537CFD438B8A247276FEF81D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
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    <link:label id="lab_us-gaap_DilutiveSecuritiesAbstract_46D6D5418C082045E88947276FEF6DC1_terseLabel_en-US" xlink:label="lab_us-gaap_DilutiveSecuritiesAbstract_46D6D5418C082045E88947276FEF6DC1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of dilutive securities:</link:label>
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    <link:label id="lab_us-gaap_EmbeddedDerivativeFinancialInstrumentsMember_BF83A738BADFDF9C1B3846E2F5A6FA7D_verboseLabel_en-US" xlink:label="lab_us-gaap_EmbeddedDerivativeFinancialInstrumentsMember_BF83A738BADFDF9C1B3846E2F5A6FA7D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">1.125% Conversion Option derivative liability</link:label>
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    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases</link:label>
    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9_label_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Leases [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9" xlink:to="lab_us-gaap_LesseeLeasesPolicyTextBlock_5DCBD7B18E75ED527169E50477BFF3A9" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConcentrationRiskCreditRisk_4D8AEB8D2D00532230B6E507261CD912_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskCreditRisk_4D8AEB8D2D00532230B6E507261CD912" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentrations of Credit Risk</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskCreditRisk_4D8AEB8D2D00532230B6E507261CD912_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskCreditRisk_4D8AEB8D2D00532230B6E507261CD912" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_4D8AEB8D2D00532230B6E507261CD912" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_C6EEA76C0BAB561CF0E5E4E1F7725753_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_C6EEA76C0BAB561CF0E5E4E1F7725753" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_C6EEA76C0BAB561CF0E5E4E1F7725753_label_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_C6EEA76C0BAB561CF0E5E4E1F7725753" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_C6EEA76C0BAB561CF0E5E4E1F7725753" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recent Accounting Pronouncements</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CD64233911308473E22E4E1F7725BFC" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortized Cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_4A1E93B8ED6B6A15B21C46E2F571D66E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due in one year or less</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_FF7DFC49785273751F9846E2F571CB32" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after one year through five years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_740F0D331F99AD5E914246E2F572B55E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_53026729D2B079CCAB3246F506DB11E8_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_53026729D2B079CCAB3246F506DB11E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after five years through ten years</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_53026729D2B079CCAB3246F506DB11E8" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_53026729D2B079CCAB3246F506DB11E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_BCF40BFA913A44CD3D0A46F58071BC8E_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_BCF40BFA913A44CD3D0A46F58071BC8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after ten years</link:label>
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    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_5853866B6CF30030195146E2F572EEDA_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_5853866B6CF30030195146E2F572EEDA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated Fair Value</link:label>
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    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_BFD671FE89C0D0E52BC846E2F5721004_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_BFD671FE89C0D0E52BC846E2F5721004" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due in one year or less</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6E4120BE615CFFADB0746E2F637BB48_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6E4120BE615CFFADB0746E2F637BB48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating activities:</link:label>
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    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_B66C7DB1A2CD5FC7FB3B46E2F6382B0F_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_B66C7DB1A2CD5FC7FB3B46E2F6382B0F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_B66C7DB1A2CD5FC7FB3B46E2F6382B0F_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_B66C7DB1A2CD5FC7FB3B46E2F6382B0F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, Depletion and Amortization</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_B66C7DB1A2CD5FC7FB3B46E2F6382B0F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_6DED91E242AC352177CF46E2F6391ECC_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_6DED91E242AC352177CF46E2F6391ECC" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_6DED91E242AC352177CF46E2F6391ECC_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_6DED91E242AC352177CF46E2F6391ECC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Deferred Income Taxes</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredIncomeTaxes" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_6DED91E242AC352177CF46E2F6391ECC" xlink:type="locator" />
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    <link:label id="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A_terseLabel_en-US" xlink:label="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash restructuring costs</link:label>
    <link:label id="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A_label_en-US" xlink:label="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-cash Restructuring Charges</link:label>
    <link:label id="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A_documentation_en-US" xlink:label="lab_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-cash Restructuring Charges</link:label>
    <link:loc xlink:href="moh-20190331.xsd#moh_NoncashRestructuringCharges" xlink:label="loc_moh_NoncashRestructuringCharges_9FE092B808F672E1974746E2F6395F1A" xlink:type="locator" />
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    <link:label id="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7_verboseLabel_en-US" xlink:label="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amortization of convertible senior notes and finance lease liabilities</link:label>
    <link:label id="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7_label_en-US" xlink:label="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization Of Debt Discount (Premium) And Sale Leaseback Financing Obligation</link:label>
    <link:label id="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7_documentation_en-US" xlink:label="lab_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amortization of Debt Discount (Premium) and Sale Leaseback Financing Obligation</link:label>
    <link:loc xlink:href="moh-20190331.xsd#moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation" xlink:label="loc_moh_AmortizationOfDebtDiscountPremiumAndSaleLeasebackFinancingObligation_D1DF2C37C0EB358A66F746E2F6397CC7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_7422159248BA46390F6946E2F63A61B3_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_7422159248BA46390F6946E2F63A61B3" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">(Gain) loss on debt extinguishment</link:label>
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    <link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_7702FACCE2018579585A46E2F63A06AD_terseLabel_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_7702FACCE2018579585A46E2F63A06AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_7702FACCE2018579585A46E2F63A06AD_label_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_7702FACCE2018579585A46E2F63A06AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Activities, Cash Flow Statement</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_7702FACCE2018579585A46E2F63A06AD" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6AA95959861AAC2A3B9F46E2F63AFFD0_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6AA95959861AAC2A3B9F46E2F63AFFD0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in operating assets and liabilities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3217EDE755750DC96D3346E2F63C0680" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C576F5118E3B7212868C46E2F63CCB76_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C576F5118E3B7212868C46E2F63CCB76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investing activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C576F5118E3B7212868C46E2F63CCB76_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C576F5118E3B7212868C46E2F63CCB76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_C576F5118E3B7212868C46E2F63CCB76" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of investments</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Marketable Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10" xlink:to="lab_us-gaap_PaymentsToAcquireMarketableSecurities_16596A1B46F48878979E46E2F63C8F10" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_5E71A8B50D701B00BBF146E2F63C7CB9_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_5E71A8B50D701B00BBF146E2F63C7CB9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales and maturities of investments</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_21913EDF57408A64330A46E2F63C2493_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_21913EDF57408A64330A46E2F63C2493" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of property, equipment and capitalized software</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_21913EDF57408A64330A46E2F63C2493" xlink:type="locator" />
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    <link:label id="lab_moh_CashPaidForSettlementOfConversionOption_E1EDA2ABFC5DE7D758B546E2F63D289C_negatedTerseLabel_en-US" xlink:label="lab_moh_CashPaidForSettlementOfConversionOption_E1EDA2ABFC5DE7D758B546E2F63D289C" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for partial settlement of 1.125% Conversion Option</link:label>
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    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfWarrants_AD745AFE72056712798C46E2F63E190B_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfWarrants_AD745AFE72056712798C46E2F63E190B" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for partial termination of 1.125% Warrants</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from (Payments for) Other Financing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE" xlink:to="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_08263CE502C8D89ECDB746E2F63E4ECE" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_E279BA60E95F973C690846E2F63E6257_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_E279BA60E95F973C690846E2F63E6257" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_E279BA60E95F973C690846E2F63E6257_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_E279BA60E95F973C690846E2F63E6257" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_E279BA60E95F973C690846E2F63E6257" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase in cash, cash equivalents, and restricted cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_F606689DAF40C7D965F946E2F63FCB46" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C329286B6EBB1A0544C046E2F63FF681_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C329286B6EBB1A0544C046E2F63FF681" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C329286B6EBB1A0544C046E2F63FF681" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C329286B6EBB1A0544C046E2F63FF681" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C329286B6EBB1A0544C046E2F63FF681" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_63E7F1F3598459E19B8F46E2F63F026D_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_63E7F1F3598459E19B8F46E2F63F026D" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents, and restricted cash and cash equivalents at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_63E7F1F3598459E19B8F46E2F63F026D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_63E7F1F3598459E19B8F46E2F63F026D" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_63E7F1F3598459E19B8F46E2F63F026D" xlink:type="arc" />
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Supplemental cash flow information:</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract_64C7003AF3FF881C5EFA46E2F63F9324" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of non-cash investing and financing activities:</link:label>
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE_label_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE" xlink:to="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_9DD170ACC7B2D7AC788346E2F63F5FFE" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Common stock used for share-based compensation</link:label>
    <link:label id="lab_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514_label_en-US" xlink:label="lab_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssued1" xlink:label="loc_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514" xlink:to="lab_us-gaap_StockIssued1_42A64EFEEE9117367DB146E2F63FD514" xlink:type="arc" />
    <link:label id="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF_terseLabel_en-US" xlink:label="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Details of change in fair value of derivatives, net:</link:label>
    <link:label id="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF_label_en-US" xlink:label="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Details of change in fair value of derivatives [Abstract]</link:label>
    <link:label id="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF_documentation_en-US" xlink:label="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Details of change in fair value of derivatives</link:label>
    <link:loc xlink:href="moh-20190331.xsd#moh_DetailsofchangeinfairvalueofderivativesAbstract" xlink:label="loc_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:to="lab_moh_DetailsofchangeinfairvalueofderivativesAbstract_EBED370A06EB43E6B03646E2F64062EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_C92B5DE80571FB6D9DDB46E2F640A4E1_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet_C92B5DE80571FB6D9DDB46E2F640A4E1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in fair value of derivatives, net</link:label>
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    <link:label id="lab_us-gaap_BusinessCombinationDescriptionAbstract_4EB53C8F182590E83D3046E2F6408019_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationDescriptionAbstract_4EB53C8F182590E83D3046E2F6408019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">1.625% Convertible Notes exchange transaction:</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationDescriptionAbstract_4EB53C8F182590E83D3046E2F6408019_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationDescriptionAbstract_4EB53C8F182590E83D3046E2F6408019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Description [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationDescriptionAbstract" xlink:label="loc_us-gaap_BusinessCombinationDescriptionAbstract_4EB53C8F182590E83D3046E2F6408019" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NotesIssued1_645F8C59F8BEBAAEDF6646E2F640D3FB_terseLabel_en-US" xlink:label="lab_us-gaap_NotesIssued1_645F8C59F8BEBAAEDF6646E2F640D3FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock issued in exchange for 1.625% Convertible Notes</link:label>
    <link:label id="lab_us-gaap_NotesIssued1_645F8C59F8BEBAAEDF6646E2F640D3FB_label_en-US" xlink:label="lab_us-gaap_NotesIssued1_645F8C59F8BEBAAEDF6646E2F640D3FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes Issued</link:label>
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    <link:label id="lab_moh_NotesIssuedFairValueAdjustmentIncreaseDecrease_070F9139DE47E18632F846E2F641292D_terseLabel_en-US" xlink:label="lab_moh_NotesIssuedFairValueAdjustmentIncreaseDecrease_070F9139DE47E18632F846E2F641292D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Component allocated to additional paid-in capital, net of income taxes</link:label>
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    <link:loc xlink:href="moh-20190331.xsd#moh_NotesIssuedFairValueAdjustmentIncreaseDecrease" xlink:label="loc_moh_NotesIssuedFairValueAdjustmentIncreaseDecrease_070F9139DE47E18632F846E2F641292D" xlink:type="locator" />
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