<SEC-DOCUMENT>0001180145-20-000046-index.html : 20200929
<SEC-HEADER>0001180145-20-000046.hdr.sgml : 20200929
<ACCEPTANCE-DATETIME>20200929085839
ACCESSION NUMBER:		0001180145-20-000046
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20200630
FILED AS OF DATE:		20200929
DATE AS OF CHANGE:		20200929
EFFECTIVENESS DATE:		20200929

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cardiovascular Systems Inc
		CENTRAL INDEX KEY:			0001180145
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				411698056
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52082
		FILM NUMBER:		201206613

	BUSINESS ADDRESS:	
		STREET 1:		1225 OLD HWY 8 NW
		CITY:			ST. PAUL
		STATE:			MN
		ZIP:			55112
		BUSINESS PHONE:		651-259-1600

	MAIL ADDRESS:	
		STREET 1:		1225 OLD HWY 8 NW
		CITY:			ST. PAUL
		STATE:			MN
		ZIP:			55112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	REPLIDYNE INC
		DATE OF NAME CHANGE:	20020813
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>def14a-2020.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: def14a-2020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>arsignature1.jpg
<TEXT>
Document 2 - file: arsignature1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image1.jpg
<TEXT>
Document 3 - file: image1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image2.jpg
<TEXT>
Document 4 - file: image2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>scottwardsignaturea061.jpg
<TEXT>
Document 5 - file: scottwardsignaturea061.jpg

</DOCUMENT>
</SEC-DOCUMENT>