The majority of commercial insurance plans have written positive coverage decisions for both personal and professional use of CGM. National payers such as Cigna, Humana, Aetna, United Healthcare and Anthem WellPoint are currently covering these CPT codes, although the coverage criteria may differ between personal and professional use of CGM. Coverage decisions may vary and limit coverage to specific patients (i.e. type 1) or may limit number of times per year CPT codes 95249, 95250 and 95251 may be covered. Work with your health plans to get copies of the most recent published CGM coverage decisions. As always, verify coding and payment with your local payers.

It is highly unlikely any commercial payers would cover training costs for devices that are not reimbursed. (Medicare does not currently reimburse for a CGM system if a smart device is solely used to display glucose data. The patient must have a receiver to use in conjunction with the smart device.) However, providers should check with individual payers for specifics on billing when a patient switches to using a smart device for glucose data display.

Yes, the code can be billed again for commercially-insured and Medicare patients if the patient is using a different manufacturer’s CGM system or a different model of a data receiver from the manufacturer’s CGM system they are currently using.

Yes, all of the services associated with CPT codes 95249 and 95250 must be provided face-to-face in order to bill for them. Services associated with CPT code 95251, however, may be a non-face-to-face service.¹

1 CPT 2019 Professional Edition. Chicago, IL: American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association.

CPT codes 95249 and 95250 do not have any physician work RVUs (Relative Value Units); therefore, the associated services can be performed by a trained RN, PharmD/RPh, RD, CDE or MA (if within their scope of practice) and billed by the supervising physician advanced practitioner or hospital outpatient department. However, only providers such as Physician (MD), Nurse Practitioner (NP), Physician Assistant (PA) or Clinical Nurse Specialist (CNS) can perform and bill for services associated with CPT code 95251.

This code can be billed only once during the time the patient owns the manufacturer-provided display device. This code may not be reported for subsequent episodes of data collection, unless the patient begins using a new generation of the manufacturer’s (or different manufacturer’s) CGM system or display device. Additionally, this code may not be billed unless at least 72 hours of CGM data is printed from the display device the patient was trained on.

If providers are performing remote monitoring beyond CGM, CPT codes 99091 or 99457 may be appropriate based on services provided. Providers should understand specific coverage criteria for billing remote monitoring (i.e. time required/frequency of billing/ patient consent).

Dexcom sensors are manufactured with a special adhesive to help them stick to patients’ skin after sensor insertion. Adhesive supplements may also be used.

• Liquid adhesive agents can be used with the sensor adhesive patch.^1,2 A suggestion for patients when using liquid adhesive agents is to:

1. Create an empty oval on the skin with the liquid adhesive product.

2. Let skin adhesive dry.

3. Insert sensor on clean skin in center of oval.

• Additional adhesive patches or tape can be applied over the sensor adhesive patch.^1,2 Suggestions for patients when using adhesive patches or tapes are to:
  • Cut a hole in the adhesive patch or tape to fit around transmitter.
  • Cut the adhesive patch or tape into strips to use ‘‘picture frame’’ technique around sensor adhesive patch.^1,3

For detailed step-by-step instructions on how to use the Dexcom G6 Continuous Glucose Monitoring (CGM) System, please refer to the user guide. Dexcom, Inc. does not recommend, endorse or warrant any third-party products, including adhesive supplements and removal products.

View the downloadable "What Works for Me" document, which outlines the step-by-step process for how to insert and remove a Dexcom G6 sensor patch.

1. Chase HP, Messer L: Understanding Insulin Pumps and Continuous Glucose Monitors. 3rd ed. Denver: Children’s Diabetes Research Foundation, 2016.

2. Englert K, Ruedy K, Coffey J, et al.: Skin and adhesive issues with continuous glucose monitors: a sticky situation. J Diabetes Sci Technol 2014;8:745–751.

3. Ives B, Sikes K, Urban A, et al.: Practical aspects of realtime continuous glucose monitors: the experience of the Yale Children’s Diabetes Program. Diabetes Educ 2010;36: 53–62.

If patients experience difficulty removing the sensor from their skin, these products and techniques may help:

General Removal Techniques

• Loosen edge of adhesive with fingernail and use products listed below if necessary.^1,2
• While removing tapes, use fingers of opposite hand to push skin down and away from adhesive. Continue to move fingers on skin toward adhesive as it is removed.²
• ‘‘Fold back’’ technique: Remove adhesive slowly, at low angle, folding back on itself.²
• ‘‘Stretch and relax’’ technique: Films that stretch (e.g., IV3000 or Tegaderm) may be stretched horizontally away from the center (opposite of the fold back technique) while walking fingers under the dressing to continue stretching it.²
• Use adhesive removal wipes to rub the skin under the tape toward the adhesive as it is removed. This helps loosen adhesive from skin and may help reduce pain with removal.¹
  
   

Removal Products and Description

For detailed step-by-step instructions on how to use the Dexcom G6 Continuous Glucose Monitoring (CGM) System, please refer to the user guide. Dexcom, Inc. does not recommend, endorse or warrant any third-party products, including adhesive supplements and removal products.

View the downloadable "What Works for Me" document, which outlines the step-by-step process for how to insert and remove a Dexcom G6 sensor patch.

1. Chase HP, Messer L: Understanding Insulin Pumps and Continuous Glucose Monitors. 3rd ed. Denver: Children’s Diabetes Research Foundation, 2016.

2. McNichol L, Lund C, Rosen T, Gray M: Medical adhesives and patient safety: State of the science: consensus statements for the assessment, prevention, and treatment of adhesive related skin injuries. J Wound Ostomy Continence Nurs 2013;40:365–380; quiz E361–E362.

 a Used within institution or support in public commentary, online articles, diabetes blogs, social media.

Yes, Dexcom G6 is indicated for children as young as 2 years old.