FDA Adverse Event Malfunction Summary report: N

DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM

MDR report key: 24887087 · Received April 15, 2026

Report

Report Number
3004753838-2026-131812
Event Type
Malfunction
Date Received
April 15, 2026
Date of Event
March 17, 2026
Report Date
April 24, 2026
Manufacturer
DEXCOM, INC.
Product Code
QBJ
UDI-DI
00386270004109
PMA / PMN Number
K213919
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
US
Reporter Occupation
OTHER
Health Professional
N

Narratives

Additional Manufacturer Narrative · 0

(B)(4).

Additional Manufacturer Narrative · 0

(B)(4).

Description of Event or Problem · 0

IT WAS REPORTED THAT SIGNAL LOSS OCCURRED OCCASIONALLY BETWEEN 03/13/2026 AND 03/19/2026. PRODUCT WAS PROVIDED FOR INVESTIGATION. AN EXTERNAL VISUAL INSPECTION WAS PERFORMED AND PASSED. NORDIC BLUETOOTH PAIRING TEST WAS PERFORMED AND FAILED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER ONE HOUR FREQUENCY AS INVESTIGATED WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

Description of Event or Problem · 0

IT WAS REPORTED THAT SIGNAL LOSS OCCURRED FREQUENTLY BETWEEN EVENT 3/13/2026 AND 3/19/2026. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WAS FOUND OCCASIONALLY WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE WAS THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
345164 DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM CONTINUOUS GLUCOSE MONITOR QBJ DEXCOM, INC. 9500-161 1826010001 00386270004109

Patients

Seq Age Sex Outcome Treatment
1 72 YR Male