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	08/02/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Subsequent to the initial mdr, a correction is required.
Additional Manufacturer Narrative
(b)(4).B5: describe event or problem - correction d device identification-correction g6 type of report- follow up h2 type of follow up- correction.

• 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 Contact: jaime chavez ; 6340 sequence dr.; san diego, CA 92121 ; +1(858)200-0200
• MDR Report Key: 50435579
• Report Number: 3004753838-2026-234653
• Device Sequence Number: 10423164
• Product Code: QBJ
• UDI-Device Identifier: 00386270004093
• UDI-Public: (01)00386270004093(11)250701(17)261231(10)1825214002
• Combination Product (Y/N): N
• Initial Reporter State: OH
• 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): 09/01/2026

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: STP-AT-011
• Device Lot Number: 1825214002
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Initial Date Received by Manufacturer: 08/03/2026
• Supplement Date Received by Manufacturer: 08/29/2026
• Initial Report FDA Received Date: 08/25/2026
• Supplement Report FDA Received Date: 09/01/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Is the Device Labeled for Single Use? (Y/N): No
• 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: 12 YR
• Patient Sex: Female