<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f0427-afb2-787d-9b89-4bfc541c8649,g:9e48660e-b23c-42b8-b048-972f16733af1-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.labcorp.com/role/Coverpage" xlink:type="simple" xlink:href="lh-20260630.xsd#Coverpage"/>
  <link:presentationLink xlink:role="http://www.labcorp.com/role/Coverpage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:href="lh-20260630.xsd#lh_Coverpage.Abstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019f0427-afb2-7005-96c0-bccb25b3d8cf" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_WrittenCommunications_019f0427-afb2-7005-96c0-bccb25b3d8cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019f0427-afb2-7285-b097-13f6fbace2cb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityAddressAddressLine1_019f0427-afb2-7285-b097-13f6fbace2cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019f0427-afb2-7c9b-9544-04665b4587f2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityTaxIdentificationNumber_019f0427-afb2-7c9b-9544-04665b4587f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019f0427-afb2-7a28-b026-d8847b2e8089" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityCentralIndexKey_019f0427-afb2-7a28-b026-d8847b2e8089" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019f0427-afb2-775e-ac03-c1fbbb26e91f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_DocumentPeriodEndDate_019f0427-afb2-775e-ac03-c1fbbb26e91f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019f0427-afb2-7ff9-93c9-7ebd70e35e94" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityRegistrantName_019f0427-afb2-7ff9-93c9-7ebd70e35e94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019f0427-afb2-771c-ae59-09f23ba8a608" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_CityAreaCode_019f0427-afb2-771c-ae59-09f23ba8a608" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019f0427-afb2-7fc3-9fd9-6442cf145215" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_LocalPhoneNumber_019f0427-afb2-7fc3-9fd9-6442cf145215" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019f0427-afb2-713d-b074-8a54ca35978d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_Security12bTitle_019f0427-afb2-713d-b074-8a54ca35978d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019f0427-afb2-71e7-b153-e58c0a89fdad" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_TradingSymbol_019f0427-afb2-71e7-b153-e58c0a89fdad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019f0427-afb2-74fe-9dc9-bab3109e8d1b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_SecurityExchangeName_019f0427-afb2-74fe-9dc9-bab3109e8d1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019f0427-afb2-7310-91b9-8948577e7a74" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityEmergingGrowthCompany_019f0427-afb2-7310-91b9-8948577e7a74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019f0427-afb2-7dc6-a33b-e97eb95db58d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_AmendmentFlag_019f0427-afb2-7dc6-a33b-e97eb95db58d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019f0427-afb2-76d1-922c-4d8222d15be2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019f0427-afb2-76d1-922c-4d8222d15be2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019f0427-afb2-770a-883a-1d9ac786f5ca" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityFileNumber_019f0427-afb2-770a-883a-1d9ac786f5ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019f0427-afb2-7013-ad96-d6919a5a8c35" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityAddressCityOrTown_019f0427-afb2-7013-ad96-d6919a5a8c35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019f0427-afb2-74e0-95b4-656c05151a01" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityAddressStateOrProvince_019f0427-afb2-74e0-95b4-656c05151a01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019f0427-afb2-7d3e-b5fb-d21e1dd78b25" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_EntityAddressPostalZipCode_019f0427-afb2-7d3e-b5fb-d21e1dd78b25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019f0427-afb2-7240-b6cd-10f80e812b12" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_SolicitingMaterial_019f0427-afb2-7240-b6cd-10f80e812b12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019f0427-afb2-711f-a50e-0475954817c0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_PreCommencementTenderOffer_019f0427-afb2-711f-a50e-0475954817c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019f0427-afb2-7092-a68a-27ce52ff97db" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019f0427-afb2-7092-a68a-27ce52ff97db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019f0427-afb2-705b-98a3-add4f4a8494b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019f0427-afb2-7274-b548-bf94fb9c0260" xlink:to="loc_dei_DocumentType_019f0427-afb2-705b-98a3-add4f4a8494b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
