<SUBMISSION>
<ACCESSION-NUMBER>0000914190-03-000131
<TYPE>5
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20030930
<FILING-DATE>20031114
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>GUIRE PATRICK E
<CIK>0001178423
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>5
<ACT>34
<FILE-NUMBER>000-23837
<FILM-NUMBER>031000614
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>C/O SURMODICS INC
<STREET2>9924 WEST 74TH STREET
<CITY>EDEN PRAIRIE
<STATE>MN
<ZIP>55344
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>SURMODICS INC
<CIK>0000924717
<ASSIGNED-SIC>2891
<IRS-NUMBER>411356149
<STATE-OF-INCORPORATION>MN
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>9924 W 74TH ST
<CITY>EDEN PRAIRIE
<STATE>MN
<ZIP>55344
<PHONE>6128292700
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>9924 WEST 74TH ST
<CITY>EDEN PRAIRIE
<STATE>MN
<ZIP>55344
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>BSI CORP
<DATE-CHANGED>19970506
</FORMER-COMPANY>
</ISSUER>
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<SEQUENCE>1
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    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000924717</issuerCik>
        <issuerName>SURMODICS INC</issuerName>
        <issuerTradingSymbol>SRDX</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001178423</rptOwnerCik>
            <rptOwnerName>GUIRE PATRICK E</rptOwnerName>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>EDEN PRAIRIE</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55344</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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Guire</signatureName><signatureDate>2003-11-13</signatureDate></ownerSignature></ownershipDocument>

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