-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 P2TpS4wpvnwrSfMFhLIRuNtywtQkxBBW3IpPge5np9NdCUWTT9Vk+YrEyjzRZE1/
 eibHv4kFAJf5OCaWvEGJrA==

<SEC-DOCUMENT>0000905448-06-000001.txt : 20060131
<SEC-HEADER>0000905448-06-000001.hdr.sgml : 20060131
<ACCEPTANCE-DATETIME>20060131140148
ACCESSION NUMBER:		0000905448-06-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060127
FILED AS OF DATE:		20060131
DATE AS OF CHANGE:		20060131

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WYGOD MARTIN J
		CENTRAL INDEX KEY:			0000905448

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24975
		FILM NUMBER:		06565185

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 676306
		CITY:			RANCHO SANTA FE
		STATE:			CA
		ZIP:			92067
		BUSINESS PHONE:		8587596001

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EMDEON CORP
		CENTRAL INDEX KEY:			0001009575
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				943236644
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		RIVER DRIVE CENTER 2
		STREET 2:		669 RIVER DR
		CITY:			ELMWOOD PARK
		STATE:			NJ
		ZIP:			07407
		BUSINESS PHONE:		2017033400

	MAIL ADDRESS:	
		STREET 1:		RIVER DRIVE CENTER 2
		STREET 2:		669 RIVER DR
		CITY:			ELMWOOD PARK
		STATE:			NJ
		ZIP:			07407

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WEBMD CORP /NEW/
		DATE OF NAME CHANGE:	20001102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTHEON CORP
		DATE OF NAME CHANGE:	19980729

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTHSCAPE CORP
		DATE OF NAME CHANGE:	19970404
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-01-27</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001009575</issuerCik>
        <issuerName>EMDEON CORP</issuerName>
        <issuerTradingSymbol>HLTH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000905448</rptOwnerCik>
            <rptOwnerName>WYGOD MARTIN J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>669 RIVER DRIVE, CENTER 2</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ELMWOOD PARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07407</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-01-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>150000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8654996</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.77</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-01-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>600000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.77</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-01-27</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-01-27</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>600000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>600000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">33-1/3% of the restricted shares vest annually on each of the first, second and third anniversary of the date of grant (fully vested on the third anniversary of the grant date).</footnote>
        <footnote id="F2">25% of the shares underlying the option vest annually on each of the first, second, third and fourth anniversary of the date of grant (fully vested on the 4th anniversary of the grant date).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lewis H. Leicher, Attorney-in-Fact for Martin J. Wygod</signatureName>
        <signatureDate>2006-01-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----