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

This billing and coding article maps implantable continuous glucose monitor procedures to CPT/HCPCS codes 0446T (implantation), 0447T (removal), and 0448T (removal with immediate insertion) for 90-, 180-, and 365-day sensors and directs users to LCD L38686 for coverage determinations. Documentation must be complete, legible, include patient identifiers and provider signature, and support the selected ICD-10-CM and CPT/HCPCS codes; non-covered services must not be billed as covered and require appropriate modifiers.

"Implantation of an implantable interstitial continuous glucose sensor (90-, 180-, or 365-day) that meets the coverage criteria in LCD L38686 is reported with CPT/HCPCS code 0446T."

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