FDA Adverse Event Malfunction Summary report: N

DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM

MDR report key: 24168125 · Received January 23, 2026

Report

Report Number
3004753838-2026-072354
Event Type
Malfunction
Date Received
January 23, 2026
Date of Event
December 25, 2025
Report Date
March 25, 2026
Manufacturer
DEXCOM, INC.
Product Code
QBJ
PMA / PMN Number
K213919
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
CA, US
Reporter Occupation
OTHER
Health Professional
N

Narratives

Additional Manufacturer Narrative · 0

(B)(4). 3004753838-2026-072354 WAS REPORTED IN ERROR. PLEASE DISREGARD INITIAL REPORTING OF THIS EVENT AS THIS EVENT HAS NOW BEEN DEEMED NOT REPORTABLE.

Additional Manufacturer Narrative · 0

(B)(4).

Additional Manufacturer Narrative · 0

(B)(4).

Description of Event or Problem · 0

SUBSEQUENT TO THE INITIAL MDR, IT WAS DETERMINED THAT A REPORT WAS SUBMITTED IN ERROR. UPON FURTHER REVIEW, IT WAS DETERMINED THAT THE PATIENT ALLEGATION DOES NOT MEET THE CRITERIA OF A REPORTABLE EVENT.

Description of Event or Problem · 0

IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WEARABLE WAS INSERTED INTO THE ARM ON (B)(6) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. THE REPORTED GLUCOSE VALUES FALL WITHIN THE D ZONE OF THE PARKES ERROR GRID. NO ADDITIONAL PATIENT OR EVENT INFORMATION IS AVAILABLE.

Description of Event or Problem · 0

IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WEARABLE WAS INSERTED INTO THE ARM ON (B)(6) 2025. NO DATA WAS PROVIDED FOR EVALUATION. THE ALLEGATION AND THE PROBABLE CAUSE COULD NOT BE DETERMINED. PEG STATEMENTS NO ADDITIONAL PATIENT OR EVENT INFORMATION IS AVAILABLE.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
223120 DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM CONTINUOUS GLUCOSE MONITOR QBJ DEXCOM, INC.

Patients

Seq Age Sex Outcome Treatment
1 35 YR Female