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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c42cf-eaac-7973-8e1d-cc11973640bb,g:4f4f2a86-6e54-42ea-a812-5f78a966e14f-->
<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-20260430.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_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:href="lh-20260430.xsd#lh_Coverpage.Abstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019c42cf-eaac-775e-82f4-75fd3edd5d2b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_WrittenCommunications_019c42cf-eaac-775e-82f4-75fd3edd5d2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019c42cf-eaac-7a20-ae59-5a23cecdb4a0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityAddressAddressLine1_019c42cf-eaac-7a20-ae59-5a23cecdb4a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019c42cf-eaac-7e2a-9858-c4ad55f3da73" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityTaxIdentificationNumber_019c42cf-eaac-7e2a-9858-c4ad55f3da73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019c42cf-eaac-7046-880f-41bab947a823" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityCentralIndexKey_019c42cf-eaac-7046-880f-41bab947a823" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019c42cf-eaac-7e10-9fcf-191844f8c09e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_DocumentPeriodEndDate_019c42cf-eaac-7e10-9fcf-191844f8c09e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019c42cf-eaac-7ecf-9a9e-208dc4840aea" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityRegistrantName_019c42cf-eaac-7ecf-9a9e-208dc4840aea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019c42cf-eaac-7531-b8c5-0c26300cf815" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_CityAreaCode_019c42cf-eaac-7531-b8c5-0c26300cf815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019c42cf-eaac-7bd2-b369-86f9c59eb99f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_LocalPhoneNumber_019c42cf-eaac-7bd2-b369-86f9c59eb99f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019c42cf-eaac-76c6-baa6-9a104a41f15c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_Security12bTitle_019c42cf-eaac-76c6-baa6-9a104a41f15c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019c42cf-eaac-7cf1-b93b-03c8a35c6ff0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_TradingSymbol_019c42cf-eaac-7cf1-b93b-03c8a35c6ff0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019c42cf-eaac-7f16-9b45-a26b5996149e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_SecurityExchangeName_019c42cf-eaac-7f16-9b45-a26b5996149e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019c42cf-eaac-78e9-a964-9845e55b8557" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityEmergingGrowthCompany_019c42cf-eaac-78e9-a964-9845e55b8557" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019c42cf-eaac-7d45-8063-8d2ae9529f25" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_AmendmentFlag_019c42cf-eaac-7d45-8063-8d2ae9529f25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019c42cf-eaac-73d1-abc7-e4e0b37dc8bd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019c42cf-eaac-73d1-abc7-e4e0b37dc8bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019c42cf-eaac-7eab-8690-a406c2df5ef1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityFileNumber_019c42cf-eaac-7eab-8690-a406c2df5ef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019c42cf-eaac-7a03-bd36-364ab562d7e3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityAddressCityOrTown_019c42cf-eaac-7a03-bd36-364ab562d7e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019c42cf-eaac-726c-bf71-ec29f0c5a107" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityAddressStateOrProvince_019c42cf-eaac-726c-bf71-ec29f0c5a107" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019c42cf-eaac-768d-af2c-b4a0a7481d89" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_EntityAddressPostalZipCode_019c42cf-eaac-768d-af2c-b4a0a7481d89" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019c42cf-eaac-7d06-ad28-43b9a21c6b34" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_SolicitingMaterial_019c42cf-eaac-7d06-ad28-43b9a21c6b34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019c42cf-eaac-7d9d-a6b4-3ee64f17fad8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_PreCommencementTenderOffer_019c42cf-eaac-7d9d-a6b4-3ee64f17fad8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019c42cf-eaac-7c7e-bb8b-f3b3bc609837" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019c42cf-eaac-7c7e-bb8b-f3b3bc609837" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019c42cf-eaac-7d6b-892c-56defe87b172" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lh_Coverpage.Abstract_019c42cf-eaac-739f-94c0-ade46be3a602" xlink:to="loc_dei_DocumentType_019c42cf-eaac-7d6b-892c-56defe87b172" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>