MedicaidBilling CodesMedium impact
Billing Guidance for Adjunctive Continuous Glucose Monitor Systems pdf
Connecticut Medicaid (HUSKY Health)·CT · Endocrinology, Family Medicine, Internal Medicine·Provider Bulletin
Effective date
Apr 1, 2022
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid is adopting Medicare's billing codes for adjunctive (non-therapeutic) continuous glucose monitors. New prior authorizations must use codes A4238 and E2102 instead of A9276-A9278. Existing authorizations for dual eligible members must be resubmitted with new codes.
Action Required
By May 1, 2022: Medical billing team must resubmit all pending or approved adjunctive CGM prior authorization requests for dual eligible members using new codes A4238 and E2102 instead of A9276-A9278. Update billing system to prevent use of old codes A9276-A9278 for dual eligible members after May 1, 2022. Claims with old codes will deny with edit 740.