Dexcom Users

For users of a Dexcom Continuous Glucose Monitoring ("CGM") device

Just as a reminder with the recent release of the new Dexcom G4 to the US market--it is NOT okay to post about previous models or older sensors as being 'for sale' on this site.

It is a violation of the Terms of Use because it is a prescription device, and any such efforts will unfortunately be removed.

We encourage you to donate supplies to non-profits such as the Charles Ray III Diabetes Association (, which accepts unexpired glucometer and insulin pump supplies, or alternatively you may talk to your physician's office or other local medical group to discuss donating them to those in need of assistance.

Thank you all for kindly refraining from this activity.

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Rich demos insertion of a G4 sensor- video

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Diabetes Forum

How to make sensor last longer?

Started by catluvr. Last reply by Aitrus72 yesterday. 12 Replies

Dexcom share Canada

Started by dishers. Last reply by FatCatAnna on Monday. 5 Replies

2 calibrations, or one?

Started by Lawdawgz. Last reply by Seth Mar 22. 13 Replies

New Dexcom wearer

Started by dalajosa. Last reply by Terry Mar 21. 13 Replies

Calibration Issues

Started by Denise. Last reply by CC Mar 20. 4 Replies

Possible adhesive allergy

Started by Susan Van Abs. Last reply by Susan Van Abs Mar 20. 13 Replies

Sensor Placements

Started by Denise. Last reply by swisschocolate Mar 18. 21 Replies

Freestyle Libre CGM

Started by Linny. Last reply by ChrisG Mar 17. 12 Replies

Actual Life of the G4 Receiver

Started by Bob Martin. Last reply by ChrisG Mar 17. 18 Replies

Advice on hip sites?

Started by Lawdawgz. Last reply by Lawdawgz Mar 14. 8 Replies

Dexcom with Share Receiver

Started by rgcainmd. Last reply by Linny Mar 12. 4 Replies

When to admit defeat?

Started by Linny. Last reply by Linny Mar 7. 7 Replies

Comment Wall


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Comment by Natasha Bowlds on December 14, 2011 at 9:02am

We have Tricare Prime and have all our omnipod and dexcom supplies 100% covered for my son. I had to appeal for the Dexcom because of his age, but it was approved.

Comment by Sandy Palmer on December 14, 2011 at 8:05am

Brevard, just to warn you. Tricare sees the sensors not as supplies and Tricare Prime does NOT cover any part of this. I faught for years with every med nec letter from every specialist you could possibly ask for. I do not see Tricare for life being any different.

Comment by Brevard Den and Sal on December 14, 2011 at 7:58am

There may be hope in the future. My husband who has been on Medicare for 8 years happened to ask if Tricare for Life, who is a secondary payer for us will support the Dexcom? They will, at 80% after a his $150 deductable has been met. Diabetes Management and Supplies in Harahan, La. did all of the leg work to make it happen in about two weeks of time.
Tricare is known to support very little that Medicare does not cover and we are both thrilled and greatful.
The Dexcom has made such a positve influence in both of our lives.

Comment by MikeO on December 14, 2011 at 7:24am

I did a little homework on Medicare coverage of CGMs and this is what I found. It seems that Medicare isn’t totally ready for all the type 1’s they’re getting. To be totally frank, we type 1’s didn’t used to live long enough to be on Medicare. Now there are a lot of type 1’s and the system doesn’t have the authority to cover innovations like CGM’s. It may take legislation to change that.

Still, it is possible to get an exception to the general rule on a case-by-case basis. See JDRF’s “how to” guide: If enough people get exceptions it will build momentum for changing the rules.

Comment by Steve D on December 13, 2011 at 10:15am

I have heard the same thing....Doug. I have Medicare and there is NO COVERAGE, I also have Anthem BC/BS and they do not cover the Dex OR my omnipod equip. That is strange for Anthem because they have a Diabetes "support" program to "edycate: us and offer all the "support we need" (ironic?0

Comment by MikeO on December 13, 2011 at 6:09am

Hi - I understand that some people have had trouble getting their CGM covered by Medicare? Do any of you have Medicare and what’s the story? Thanks - Mike

Comment by Brian on December 10, 2011 at 9:23am

Well I think I have solved my Dexcom conundrum and the solution was to read and follow the instructions in the Green Book 3.5 . I had omitted the vital step after inserting the sensor of retracting the needle so I was withrawing the sendor still attached to the needle. A stupid and expensive blunder.

Comment by Allen on December 8, 2011 at 7:40am

Various people have had different experiences bringing Dex back from the ???. Mine has come back by itself on occasion. In my experience, though, if it is more than a week old, it is often an indication that its useful life is over.

Comment by Allen on December 8, 2011 at 7:38am

Comment by Brian on December 8, 2011 at 6:13am

My new Dexcom has frequently not shown glucose level but ??? instead for some hrs. Now its been ??? for 6 hrs. No sensor dead symbol but should I change now?


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