MAUDE Adverse Event Report: DEXCOM, INC. DEXCOM G6 CONTINUOUS GLUCOSE MONITORING SYSTEM

Model Number	9445-24
Medical Device Problem Code	Wireless Communication Problem (3283)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/01/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(4).
Event or Problem Description
It was reported that a signal loss occurred.It was indicated the patient started their transmitter past the 'use by' date, which is misuse of the device.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.

• Brand Name: DEXCOM G6 CONTINUOUS GLUCOSE MONITORING SYSTEM
• Common Device Name: CONTINUOUS GLUCOSE MONITOR
• Manufacturer (Section D): DEXCOM, INC.; 6340 sequence dr.; san diego CA 92121
• Manufacturer Contact: ashley spoto ; 6340 sequence dr.; san diego, CA 92121 ; 8582000200
• MDR Report Key: 23077740
• Report Number: 3004753838-2025-261997
• Device Sequence Number: 14648943
• Product Code: QBJ
• UDI-Device Identifier: 00386270001627
• UDI-Public: (01)00386270001627(11)230817(17)240815(10)5330353
• Combination Product (Y/N): N
• Initial Reporter Country: JP
• PMA/510(K) Number: DEN170088
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 09/17/2025

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 Expiration Date: 08/15/2024
• Device Model Number: 9445-24
• Device Catalogue Number: STT-GS-006
• Device Lot Number: 5330353
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 09/01/2025
• Initial Report FDA Received Date: 09/17/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 08/17/2023
• 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: 57 YR
• Patient Sex: Male