Exhibit 23.02
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the reference to our firm under the caption "Experts" in this Registration Statement (Form S-3) and related Prospectus of DexCom, Inc. for the registration of 110,993 shares of its common stock and to the incorporation by reference therein of our reports dated February 23, 2016 with respect to the consolidated financial statements and schedule of DexCom, Inc., and the effectiveness of internal control over financial reporting of DexCom, Inc., included in its Annual Report (Form 10-K) for the year ended December 31, 2015, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
San Diego, California
May 3, 2016
