Billing and Coding: Implantable Continuous Glucose Monitors (I-CGM)

Implantation and removal (with or without immediate reinsertion) of implantable continuous glucose monitors (I-CGM) are billable using specified CPT/HCPCS codes (0446T, 0447T, 0448T, G0565) when the device and procedure meet the reasonable and necessary criteria in LCD L38657/L38662. All billing must be supported by complete, legible medical record documentation (including clinician signature and justification for ICD-10/CPT/HCPCS codes), and Medicare must not be billed for services not covered by the LCD; use appropriate modifiers for non-covered services.

"Implantation of an implantable continuous glucose monitor (I-CGM) that meets the criteria in LCD L38657/L38662 is reportable using CPT/HCPCS code 0446T for 90-, 180-, or 365-day implantable glucose..."

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