<SEC-DOCUMENT>0001180145-18-000017-index.html : 20180316
<SEC-HEADER>0001180145-18-000017.hdr.sgml : 20180316
<ACCEPTANCE-DATETIME>20180316160952
ACCESSION NUMBER:		0001180145-18-000017
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180312
ITEM INFORMATION:		Entry into a Material Definitive Agreement
FILED AS OF DATE:		20180316
DATE AS OF CHANGE:		20180316

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52082
		FILM NUMBER:		18695722

	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>8-K
<SEQUENCE>1
<FILENAME>a8-k31618.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a8-k31618.htm

</DOCUMENT>
</SEC-DOCUMENT>