MAUDE Adverse Event Report: Dexcom, Inc. Dexcom G7 Continuous Glucose Monitoring System

Model Number	9500-161
Medical Device Problem Code	Wireless Communication Problem (3283)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/21/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that a signal loss occurred.No product or data was provided for evaluation.The allegation and a probable cause could not be determined.No injury or medical intervention was reported.
Additional Manufacturer Narrative
(b)(4) this report was impacted by emdr scheduled maintenance occurring july 22-27, 2026.

• Brand Name: Dexcom G7 Continuous Glucose Monitoring System
• Common Device Name: Continuous Glucose Monitor
• Manufacturer (Section D): Dexcom, Inc.; 6340 sequence dr.; san diego CA 92121
• Manufacturer (Section G): Dexcom, Inc.; 232 s dobson rd; mesa AZ 85202
• Manufacturer Contact: jaime chavez ; 6340 sequence dr.; san diego, CA 92121 ; +1(858)200-0200
• MDR Report Key: 50028447
• Report Number: 3004753838-2026-205855
• Device Sequence Number: 18598194
• Product Code: QBJ
• UDI-Device Identifier: 00386270004123
• UDI-Public: (01)00386270004123(11)251101(10)1725324001
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: K213919
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Consumer
• Type of Report: Initial,Followup
• Report Date (Section B): 08/05/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Model Number: 9500-161
• Device Catalogue Number: STE-AT-030
• Device Lot Number: 1725324001
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 07/15/2026
• Is the Reporter a Health Professional?: No
• Initial Date Received by Manufacturer: 07/22/2026
• Supplement Date Received by Manufacturer: 07/28/2026
• Initial Report FDA Received Date: 07/27/2026
• Supplement Report FDA Received Date: 08/05/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/01/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 14 YR
• Patient Sex: Female
• Patient Weight: 82 LB