MedicaidBilling CodesMedium impact
Codes K0553 and K0554 for Therapeutic Continuous Glucose Monitors pdf
Connecticut Medicaid (HUSKY Health)·CT · Endocrinology, Family Medicine, Internal Medicine·Provider Bulletin
Effective date
Mar 1, 2020
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid added new billing codes K0553 and K0554 for therapeutic continuous glucose monitors (CGM) like FreeStyle Libre, requiring prior authorization and specific frequency limits. These new codes replace existing codes for therapeutic CGM billing and include bundled supplies that cannot be billed separately.
Action Required
By March 1, 2020: DME billing teams must use codes K0553 and K0554 for all therapeutic CGM systems (including FreeStyle Libre) instead of A9276-A9278 codes. Obtain prior authorization for all therapeutic CGM claims. Stop billing supply codes A4233-A4259, E0607, and E2101 separately when K0553 is billed in the same month as these are now bundled. Update billing system with frequency limits: K0553 (1 per month), K0554 (1 per 3 years). Claims will be denied if bundled supplies are billed separately or frequency limits are exceeded.