Medicare-Dexcom-Smartphones:  Wait! Just Wait!

On 6/11/18 Medicare announced a change in policy to allow Medicare beneficiaries to use smartphones in conjunction with continuous glucose monitors.

“After a thorough review of the law and our regulations, CMS is announcing that Medicare’s published coverage policy for CGMs will be modified to support the use of CGMs in conjunction with a smartphone, including the important data sharing function they provide for patients and their families.

The Durable Medical Equipment Medicare Administrative Contractors will issue a revised policy article in the near future, at which time the published change will be effective.”

I have not blogged about this change for several reasons. 1) I am a lazy blogger. 2) I was quoted extensively in articles by Diabetes Mine and Diabetes Daily about my reactions to the announcement. 3) Most of my diabetes preaching these days takes place on Facebook. Today I decided to enter the arena with a blogpost because of the chaos on diabetes social media about what this announcement means and when it will be implemented.

Dexcom initiated the confusion with a 6/11/18 press release that states: “With nearly half of adults ages 65 and up using smartphones, Medicare diabetes patients are now able to use the Dexcom Share feature that allows users to share glucose information with up to five loved ones or caregivers.”

The problem is the word “now.” Now is not the near future as stated by CMS. Adding to the confusion is that a definitive policy was not communicated and standardized throughout the Dexcom organization and some Medicare beneficiaries were told by Dexcom reps that they could immediately begin using the G5 Mobile App. 

A couple of Facebook quotes:

“Damnit. Dexcom said it was good to go last night.”

“I called Dexcom support/app & software department again today they checked & confirmed that we could start using it as of June 11.”

“It would help us all if CMS or Dexcom would give a definitive statement about when. There is no hard statement about waiting.”

On top of that, Diatribe (whom I normally consider to be the Gospel of Diabetes) published an article that is not entirely correct. It states: “Like other users, G5 Medicare beneficiaries can now choose to view real-time glucose data on the G5 app only, the receiver only, or both devices.”

Christel Marchand Aprigliano of DPAC who has met extensively with Dexcom and Tandem in regards to the Medicare negotiations responded on Facebook: “The receiver will still be part of the system. It is still required as part of any Medicare contract. The usage of the app will be in addition to the receiver.”

She also stated:

“While I can’t speak for CMS (Who will obviously have the final say), the meeting on Wednesday was that it would be receiver + smart phone. The receiver is durable medical equipment and the modification of language will reflect the addition of smart device (but not the purchase of said smart device).”

The date of implementation for the policy change is somewhat murky. A Dexcom official confirmed with Medicare diabetes advocate, Larry Thomas, that: “It becomes official on June 21. The technical correction notice must be updated in 10 business days from the notice.” Diatribe also wrote: “According to Dexcom, the deadline for the Centers for Medicare and Medicaid Services (CMS) to update the coverage policy is June 21, if not sooner.”

But Christel cautions us that regardless of date: 

“Do NOT download the app until the actual physical ruling has been changed.”

The last quote that I will share is a June 14 Facebook posting by Larry Thomas about his conversation with a Dexcom Medicare representative:

“The old regulations regarding NOT using the G5 app for Medicare patients are still in place and Dexcom representatives are still required and instructed to report you to Medicare if you are using the G5 mobile app until the rules are changed. This means not only will you be back charged if you are not in compliance, but you will possibly lose future coverage for Dexcom CGM supplies in the future i.e. you will become a cash-only patient with Dexcom. These are her words not mine. If you doubt them please call and speak with a representative in the Medicare department at Dexcom. Remember, just because a tech support person or app support person gives you the okay to use the app, it does not waive your responsibility to abide by the written contract you signed in order for you to get coverage by Medicare for the Dexcom CGM system. I have again requested Dexcom to send out an email to all of us affected by this situation to clarify that it’s “not a done deal yet” (again her words not mine) and have also reached out (again) to the media release department at Dexcom to change the media release so that people are not confused by this.”

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What you need to know if your Dexcom G5 is being reimbursed by Medicare:

1)  You are not yet allowed to use the Dexcom G5 Mobile App. You must wait until the revised policy is issued by DME Medicare Administrative Contractors (MAC’s) such as Noridian. If you use your smartphone before this revision is released, you are in violation of Medicare policy and risk losing Medicare reimbursement for your Dexcom G5.

2)  It is highly unlikely that you will be able to your smartphone exclusively without some use of the receiver. “In conjunction” means “with” and “combining” not burying the receiver in a sock drawer. IMO it is best to refrain from sharing your receiver-avoidance intentions on social media until the final CMS policies are released. Don’t give CMS ammunition to contrive stupid roadblocks to reasonable CGM use by Medicare beneficiaries.

3)  Do not call Dexcom at this time. Christel Marchand Aprigliano of DPAC told me: “Tell everyone to wait for the policy change from CMS in writing – Dexcom will put out information when it becomes available. Please kindly also remind them that the customer service department at Dexcom is trying very hard to provide good customer service, but it is not in anyone’s best interest to call – wait for the announcement published by Dexcom on the website (and I’m sure we will be announcing this as well.)”

4)  Nothing about this recent change in policy affects the use of the Tandem X2 insulin pump as a CGM receiver. Although Tandem and Dexcom are in negotiation with CMS, the current policy is that Medicare beneficiaries are forbidden from using their Tandem t:slim X2 pumps as a Dexcom G5 receiver.

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Special thanks to Christel Marchand Aprigliano of DPAC and Larry Thomas, bulldog Medicare diabetes advocate, for giving me permission to share their words.

Note that all bold text in this post is my emphasis and not that of the organization or person being quoted.

Living on Planet Dexcom

Starting with the Dexcom G4  released in 2012, I have bolused insulin based on my CGM. Although the G4 was not FDA-approved for insulin dosing, I was comfortable doing so “sometimes, in certain circumstances, and within certain guidelines.” That quote comes from a 2013 blogpost titled “To Dose or Not to Dose” and explains that I mostly trusted the Dex but averaged 8 fingersticks per day.

Fast forward 5 years. I regularly dose insulin off my Dexcom CGM and only average 4 meter tests per day. That average reflects sensor day 1 where I might test 8 times and other days where I may only test 2-3 times. The Dexcom G5 is somewhat more accurate than the algorithm of the original G4, but the difference is only a couple MARD points and not a huge statistical variation.

So what has changed that I have eliminated at least 4 meter tests per day?

What has changed is Me. 

I have 10 years of CGM usage under my belt. The early years of Medtronic SofSensors were rocky with a huge improvement when I moved to the Dexcom 7+. The 7+ was reliable for trends but I don’t remember trusting it enough to guide my bolusing decisions. With the mostly reliable G4 numbers, I frankly just became lazy about using my BG meter. I had good insurance with no need to ration test strips and no issue poking holes in my fingers. I was just lazy and welcomed a small reprieve from a few daily diabetes tasks. Before I knew it, the laziness turned into a habit. It was initially a guilty habit but over time CGM reliance became entrenched in my diabetes decision-making. 

And guess what. It didn’t kill me! And now it is FDA-approved.

Lately I have been frustrated with inconsistencies between my meter and my Dexcom numbers. It drives me crazy. I have always had issues with Dex sensors reading low. As I increasingly target normal-ish BG numbers, the Dex low tendency often results in alarms for lows that aren’t lows. Dexcom screams 65; meter says 85. Maybe I calibrate and Dex goes up to 75 before dropping back down to the 60’s. I know that numbers showing up after calibrations are determined by “The Algorithm” but sometimes if I enter 85, I just want the receiver to say 85. 

My perfecto personality overreacts to diabetes numbers. When my meter and CGM feud, I calibrate too often. I over-manage blood sugars. I get lows and highs as I target perfection and my mental health meter explodes. 

What do I do?

Do I start testing 8-12 times a day like in the old days? Do I donate the CGM to Goodwill?

Heck No!

I just move to Planet Dexcom and go with the flow of CGM numbers. I test less.

Although Dr. Bernstein might disagree, I believe that when you are 66 years old with 42 years of diabetes under your belt, 20 or 30 points here and there probably doesn’t matter a lot. Especially if I have a flatter CGM tracing because of fewer peaks and valleys. By not obsessively using my meter, I might miss some large Dexcom/meter discrepancies. At the same time, it hasn’t killed me yet. I am mostly hypo unaware. But because I have had so few catastrophic lows since the introduction of Dexcom G4, I have some confidence that if I pay attention to my body and my diabetes devices, I am somewhat protected from incapacitating lows.

Remember. It hasn’t killed me yet.

Note: Because I am on Medicare, I am using the Dexcom G5 and it will be a while before I have access to the G6. I find it interesting that many of the early-users of the G6 which requires no calibration are celebrating its accuracy. Simultaneously they are claiming that they are not using their BG meter. So actually they don’t know how accurate it is. They are living on Planet Dexcom and finding that it is a relatively safe and happy place to be.

There will come a day when blood glucose meters go away and everyone with diabetes uses some type of continuous glucose meter. We’ll live on

Planet Dexcom or

Planet Libre or

Planet Medtronic or

Planet Eversense or

Some other CGM planet in the diabetes universe.

Relatively safe and happy.