Does Insurance Cover CGM? 2026 Coverage Guide

Who does insurance cover for CGM?

CGM coverage depends on the exact plan, device, indication, clinical documentation and supplier. The categories below do not guarantee payment.

Type 1 diabetes: check the full Medicare, Medicaid or private-plan criteria. Diagnosis alone does not guarantee coverage.

Type 2 diabetes with insulin: insulin treatment may satisfy one coverage condition, but the remaining plan criteria still apply.

Type 2 diabetes without insulin: coverage depends on the exact plan and all applicable criteria. Medicare can cover qualifying documented problematic hypoglycemia; non-insulin treatment alone neither guarantees nor rules out coverage. Confirm requirements with the insurer and supplier.

Prediabetes and prevention: generally not covered. OTC CGMs are available without a prescription for this population, but insurance reimbursement is rare.

Medicare CGM coverage in 2026

Medicare covers CGM under the Durable Medical Equipment (DME) benefit for beneficiaries who:

Meet the coverage criteria in the Medicare LCD (CMS LCD L33822). These include a diabetes diagnosis; a prescription showing that the treating practitioner has concluded you or your caregiver is sufficiently trained on the device; a prescription in accordance with the device's FDA indications; and either insulin treatment or a documented history of problematic hypoglycemia. An in-person or Medicare-approved telehealth visit is required within six months before ordering and every six months after the first prescription. Since 2023 the policy no longer requires multiple daily insulin administrations or a pump, but insulin treatment alone does not guarantee coverage, and these criteria are not a promise of coverage for everyone.

Have a treating physician who documents medical necessity — your prescriber needs to certify that CGM is clinically appropriate for your situation.

Under Original Medicare, with supplier assignment, you generally pay 20% of the Medicare-approved amount after the Part B deductible. Any Medigap contribution depends on the policy; no zero-cost result is guaranteed.

Medicare also applies receiver, supplier and device requirements, including applicable PDAC coding verification. Do not infer coverage from a brand name or OTC clearance. Check the exact prescribed system and supplier against the current rules.

How to get CGM covered by insurance

Step 1 — Get a prescription. Your prescriber (endocrinologist, primary care, or diabetes care provider) needs to write a CGM prescription. Mention specifically which device you want — not all devices are covered equally by all plans.

Step 2 — Check your formulary. Contact your insurance and confirm which CGM brands and models are on your plan's formulary. Dexcom and Abbott are typically covered; some plans have preferred brands with lower cost sharing.

If prior authorization is required, your prescriber may need to submit diagnosis, treatment and other plan-specific documentation. Processing time varies; no fixed one- or two-week result is promised.

If denied, request the reason and follow the plan’s appeal process with your prescriber. Neither success nor a particular timetable is guaranteed.

OTC CGM options if you're not covered

If you don't qualify for insurance coverage — or you want a CGM without navigating the prescription process — OTC devices are available without a prescription:

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Dexcom Stelo — 15-day wear, no prescription. Available at CVS, Walgreens, Amazon. Check price on Amazon →

Abbott Lingo — 14-day wear, no prescription. Available direct from Abbott.

HSA/FSA: OTC CGMs may be eligible for reimbursement through HSA (Health Savings Account) or FSA (Flexible Spending Account). Check with your plan administrator.

Frequently asked questions