Dexcom G7 GSS (160) 9500-160Recalls & reported problems

Summary

The FDA's MAUDE database contains 33,025 adverse event reports that list this exact device (DI 00386270003584), received between Oct 9, 2023 and Sep 15, 2026 — classified as 372 injuries, 32,653 malfunctions.

The most frequently reported specific device problem is “Wireless Communication Problem” (16,573 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Most reported problems

Recent adverse event reports

The 25 most recent of 33,025 reports, in the reporter's own words as published by the FDA.

• MalfunctionSep 15, 2026Wireless Communication Problem

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50782193 ↗
• MalfunctionMar 4, 2026Detachment of Device or Device Component

  IT WAS REPORTED THAT AN APPLICATOR DEPLOYMENT OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2025. PRODUCT WAS PROVIDED FOR INVESTIGATION. AN EXTERNAL VISUAL INSPECTION WAS PERFORMED AND PASSED. INTERNAL VISUAL INSPECTION WAS PERFORMED AND FAILED DUE TO MISSING NEEDLE. AN APPLICATOR DEPLOYMENT WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, A BROKEN OR DETACHED NEEDLE OR CANNULA WAS FOUND IN CONNECTION TO THE REPORTED EVENT. THE PROBABLE CAUSE OF THE BROKEN OR DETACHED NEEDLE OR CANNULA COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24506301 ↗
• MalfunctionFeb 18, 2026Protective Measures Problem

  DEXCOM BECAME AWARE THAT THE USER EXPERIENCED A FAILURE BUT DID NOT RECEIVE THE EXPECTED SENSOR FAILURE ALERT ON THEIR G7 CGM APPLICATION. PRODUCT WAS PROVIDED AND AN INVESTIGATION WAS PERFORMED. THE ROOT CAUSE WAS DETERMINED TO BE A CODING ISSUE. THE G7 CGM APPLICATION ONLY DETECTS THAT THE SESSION HAS ENDED, THUS, IT DOES NOT ALERT THE USER THAT THE SENSOR HAS FAILED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24380206 ↗
• MalfunctionJan 12, 2026Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. 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 AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 24045556 ↗
• MalfunctionJan 3, 2026Protective Measures Problem

  DEXCOM BECAME AWARE THAT THE USER EXPERIENCED A FAILURE BUT DID NOT RECEIVE THE EXPECTED SENSOR FAILURE ALERT ON THEIR G7 CGM APPLICATION. DATA WAS PROVIDED AND AN INVESTIGATION WAS PERFORMED. THE ROOT CAUSE WAS DETERMINED TO BE A CODING ISSUE. THE G7 CGM APPLICATION ONLY DETECTS THAT THE SESSION HAS ENDED, THUS, IT DOES NOT ALERT THE USER THAT THE SENSOR HAS FAILED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23953030 ↗
• MalfunctionDec 31, 2025Protective Measures Problem; Protective Measures Problem

  DEXCOM BECAME AWARE THAT THE USER EXPERIENCED A FAILURE BUT DID NOT RECEIVE THE EXPECTED SENSOR FAILURE ALERT ON THEIR G7 CGM APPLICATION. DATA WAS PROVIDED AND AN INVESTIGATION WAS PERFORMED. THE ROOT CAUSE WAS DETERMINED TO BE A CODING ISSUE. THE G7 CGM APPLICATION ONLY DETECTS THAT THE SESSION HAS ENDED, THUS, IT DOES NOT ALERT THE USER THAT THE SENSOR HAS FAILED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23938780 ↗
• MalfunctionDec 31, 2025Protective Measures Problem; Protective Measures Problem

  DEXCOM BECAME AWARE THAT THE USER EXPERIENCED A FAILURE BUT DID NOT RECEIVE THE EXPECTED SENSOR FAILURE ALERT ON THEIR G7 CGM APPLICATION. DATA WAS PROVIDED AND AN INVESTIGATION WAS PERFORMED. THE ROOT CAUSE WAS DETERMINED TO BE A CODING ISSUE. THE G7 CGM APPLICATION ONLY DETECTS THAT THE SESSION HAS ENDED, THUS, IT DOES NOT ALERT THE USER THAT THE SENSOR HAS FAILED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23938713 ↗
• MalfunctionDec 4, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. 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 AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23720093 ↗
• MalfunctionDec 4, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. 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 AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23718012 ↗
• MalfunctionSep 18, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. 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 AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23089054 ↗
• MalfunctionSep 16, 2025Detachment of Device or Device Component; Detachment of Device or Device Component

  IT WAS REPORTED THAT A DETACHED OR MISSING SENSOR WIRE OCCURRED. THE SENSOR WAS INSERTED INTO THE ABDOMEN ON (B)(6) 2025. 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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23066042 ↗
• MalfunctionSep 16, 2025Wireless Communication Problem; Wireless Communication Problem

  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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23062920 ↗
• MalfunctionSep 16, 2025High Readings; High Readings

  IT WAS REPORTED THAT AN INACCURACY BETWEEN THE CONTINUOUS GLUCOSE MONITOR (CGM) AND THE BLOOD GLUCOSE (BG) METER OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM ON (B)(6) 2025. IT WAS INDICATED THAT THE PATIENT USED AN EXPIRED SENSOR, WHICH IS MISUSE OF THE DEVICE. 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 INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: Hypoglycemia

  MAUDE report 23062138 ↗
• MalfunctionSep 15, 2025Wireless Communication Problem; Wireless Communication Problem

  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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23058073 ↗
• MalfunctionSep 12, 2025Wireless Communication Problem; Wireless Communication Problem

  AFTER SUBMISSION OF THE INITIAL MDR, PRODUCT WAS RECEIVED ON 9/10/2025 AND IT WAS DETERMINED THIS COMPLAINT IS NOT REPORTABLE PER CORPFT-140202.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23042407 ↗
• MalfunctionSep 11, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT A PAIRING ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. A PAIRING ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER AN HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS WAS DETERMINED TO BE THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23032649 ↗
• MalfunctionSep 10, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT A PAIRING ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. A PAIRING ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER AN HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS WAS DETERMINED TO BE THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23018802 ↗
• MalfunctionSep 10, 2025Wireless Communication Problem; Wireless Communication Problem

  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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23015666 ↗
• MalfunctionSep 9, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT A NO READINGS/ SENSOR ERROR/ BRIEF SENSOR ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. NO READINGS/ SENSOR ERROR/ BRIEF SENSOR ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER AN HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS WAS DETERMINED TO BE THE TRANSMITTER AND APP WERE UNABLE TO ESTABLISH A CONNECTION. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 23001540 ↗
• MalfunctionSep 8, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT A PAIRING ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. A PAIRING ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER ONE HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22997779 ↗
• MalfunctionSep 8, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT A PAIRING ISSUE OCCURRED. PERFORMANCE DATA WAS REVIEWED. A PAIRING ISSUE WAS NOT FOUND WITHIN THE INVESTIGATION WINDOW. THE ALLEGATION WAS NOT CONFIRMED. HOWEVER, SIGNAL LOSS OVER ONE HOUR WAS FOUND IN CONNECTION TO THE REPORTED ALLEGATION. THE PROBABLE CAUSE OF THE SIGNAL LOSS COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22994059 ↗
• MalfunctionSep 5, 2025Wireless Communication Problem; Wireless Communication Problem

  IT WAS REPORTED THAT SIGNAL LOSS OCCURRED. PRODUCT WAS PROVIDED FOR INVESTIGATION. AN EXTERNAL VISUAL INSPECTION WAS PERFORMED AND PASSED. NORDIC BLUETOOTH WAS PERFORMED AND FAILED. PERFORMANCE DATA WAS REVIEWED. THE ALLEGATION WAS CONFIRMED DUE TO THE FINDING OF SIGNAL LOSS OVER AN HOUR WITHIN THE INVESTIGATION WINDOW. THE PROBABLE CAUSE COULD NOT BE DETERMINED. NO INJURY OR MEDICAL INTERVENTION WAS REPORTED.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22986421 ↗
• MalfunctionSep 5, 2025Premature End-of-Life Indicator; Premature End-of-Life Indicator

  IT WAS REPORTED THAT EARLY SENSOR EXPIRATION OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM. 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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22982521 ↗
• MalfunctionSep 5, 2025Premature End-of-Life Indicator; Premature End-of-Life Indicator

  IT WAS REPORTED THAT EARLY SENSOR EXPIRATION OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM. 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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22981553 ↗
• MalfunctionSep 5, 2025Premature End-of-Life Indicator; Premature End-of-Life Indicator

  IT WAS REPORTED THAT EARLY SENSOR EXPIRATION OCCURRED. THE SENSOR WAS INSERTED INTO THE ARM. 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.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 22981528 ↗