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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EfpFxVjo3DdSwu1GnWZeOITm6GYj7EZXNowENevfVn7FLwId1YXT5uzQ5J+RAPRC
 q6rKeXn+BN676pdTnksQkg==

<SEC-DOCUMENT>0001209191-03-003611.txt : 20030509
<SEC-HEADER>0001209191-03-003611.hdr.sgml : 20030509
<ACCEPTANCE-DATETIME>20030509093838
ACCESSION NUMBER:		0001209191-03-003611
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030507
FILED AS OF DATE:		20030509

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SICILIANO ARTHUR A PHD
		CENTRAL INDEX KEY:			0001188754

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13690
		FILM NUMBER:		03689127

	MAIL ADDRESS:	
		STREET 1:		11 STATE STREET
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			POLYMEDICA CORP
		CENTRAL INDEX KEY:			0000878748
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				043033368
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		11 STATE ST
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801
		BUSINESS PHONE:		6179332020

	MAIL ADDRESS:	
		STREET 1:		11 STATE STREET
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	POLYMEDICA INDUSTRIES INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>    <schemaVersion>X0101</schemaVersion><documentType>4</documentType><periodOfReport>2003-05-07</periodOfReport><issuer><issuerCik>0000878748</issuerCik>        <issuerName>POLYMEDICA CORP</issuerName><issuerTradingSymbol>PLMD</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001188754</rptOwnerCik>            <rptOwnerName>SICILIANO ARTHUR A PHD</rptOwnerName>        </reportingOwnerId>        <reportingOwnerAddress>            <rptOwnerStreet1>  </rptOwnerStreet1>            <rptOwnerStreet2>  </rptOwnerStreet2>            <rptOwnerCity>  </rptOwnerCity>            <rptOwnerState>  </rptOwnerState>            <rptOwnerZipCode>  </rptOwnerZipCode>        </reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurit
y><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-07</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>627</value><footnoteId id="F1" /></transactionShares><transactionValue><value>34.01</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>112735</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeSecurity><footnotes><footnote id="F1">The reported sale was effected by a broker transaction pursuant to instructions set forth in a Rule 10b5-1 trading plan adop
ted by the reporting person.</footnote></footnotes><ownerSignature><signatureName>Arthur A. Siciliano</signatureName><signatureDate>2003-05-09</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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