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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RyMxjUA9/yIuHGv4FkpcKglxg8wvSB24HzYlOt2RfmNt0EZVFTlD1S5Ch36ZDKmf
 U/HBwKN2F8+X6lzpKrBlCA==

<SEC-DOCUMENT>0000903954-09-000044.txt : 20090729
<SEC-HEADER>0000903954-09-000044.hdr.sgml : 20090729
<ACCEPTANCE-DATETIME>20090729113551
ACCESSION NUMBER:		0000903954-09-000044
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090727
FILED AS OF DATE:		20090729
DATE AS OF CHANGE:		20090729

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FOX LAWRENCE JOSEPH
		CENTRAL INDEX KEY:			0001213174

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-08777
		FILM NUMBER:		09969293

	MAIL ADDRESS:	
		STREET 1:		DRINKER BIDDLE & REATH
		STREET 2:		ONE LOGAN SQUARE 18TH CHERRY STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CREDIT SUISSE HIGH YIELD BOND FUND
		CENTRAL INDEX KEY:			0001061353
		IRS NUMBER:				134009166
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		ELEVEN MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010
		BUSINESS PHONE:		2123252000

	MAIL ADDRESS:	
		STREET 1:		ELEVEN MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DLJ HIGH YIELD BOND FUND
		DATE OF NAME CHANGE:	19980508
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001061353</issuerCik>
        <issuerName>CREDIT SUISSE HIGH YIELD BOND FUND</issuerName>
        <issuerTradingSymbol>DHY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001213174</rptOwnerCik>
            <rptOwnerName>FOX LAWRENCE JOSEPH</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>DRINKER BIDDLE &amp; REATH</rptOwnerStreet1>
            <rptOwnerStreet2>ONE LOGAN SQUARE 18TH CHERRY STREET</rptOwnerStreet2>
            <rptOwnerCity>PHILADELPHIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19103</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Trustee &amp; Audit Com Chairman</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>common share</value>
            </securityTitle>
            <transactionDate>
                <value>2009-07-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1489</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.4</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25624.231</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The total shares held following this transaction includes 741.392 shares acquired on 1/22/09, 1/29/09, 2/27/09, 3/26/09, 4/27/09, 5/28/09, 6/25/09 and 7/21/09 as part of the fund's dividend reinvestment plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Karen Regan, as attorney-in-fact</signatureName>
        <signatureDate>2009-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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