<SEC-DOCUMENT>0001093557-18-000103-index.html : 20180531
<SEC-HEADER>0001093557-18-000103.hdr.sgml : 20180531
<ACCEPTANCE-DATETIME>20180531161027
ACCESSION NUMBER:		0001093557-18-000103
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20171231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20171231
</ITEM>
</RULE>
FILED AS OF DATE:		20180531
DATE AS OF CHANGE:		20180531

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:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51222
		FILM NUMBER:		18871696

	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>SD
<SEQUENCE>1
<FILENAME>a2018formsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: a2018formsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>ex101conflictmineralsrepor.htm
<DESCRIPTION>EXHIBIT 1.01
<TEXT>
Document 2 - file: ex101conflictmineralsrepor.htm

</DOCUMENT>
</SEC-DOCUMENT>