    <SEC-DOCUMENT>0001093557-19-000103-index.html : 20190419
    <SEC-HEADER>0001093557-19-000103.hdr.sgml : 20190419
    <ACCEPTANCE-DATETIME>20190419144717
    ACCESSION NUMBER:		0001093557-19-000103
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		8
    CONFORMED PERIOD OF REPORT:	20190530
    FILED AS OF DATE:		20190419
    DATE AS OF CHANGE:		20190419
    EFFECTIVENESS DATE:		20190419

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DEXCOM INC
    		CENTRAL INDEX KEY:			0001093557
    		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
    		IRS NUMBER:				330857544
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-51222
    		FILM NUMBER:		19757735

    	BUSINESS ADDRESS:
    		STREET 1:		6340 SEQUENCE DRIVE
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92121
    		BUSINESS PHONE:		8582000200

    	MAIL ADDRESS:
    		STREET 1:		6340 SEQUENCE DRIVE
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92121
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>dxcm-2019xdef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: dxcm-2019xdef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>dexcomlogo1.jpg
    <TEXT>
    Document 2 - file: dexcomlogo1.jpg

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

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>dxcmtsr2018.jpg
    <TEXT>
    Document 4 - file: dxcmtsr2018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>dxcm5yearceocomp2018.jpg
    <TEXT>
    Document 5 - file: dxcm5yearceocomp2018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>dxcmcompelements2018v4.jpg
    <TEXT>
    Document 6 - file: dxcmcompelements2018v4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>dxcmproxycard12019.jpg
    <TEXT>
    Document 7 - file: dxcmproxycard12019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>dxcmproxycard22019.jpg
    <TEXT>
    Document 8 - file: dxcmproxycard22019.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>