MedicaidAdministrativeMedium impact
National Correct Coding Initiative (NCCI) – Medically Unlikely Edits (MUE) Review Process pdf
Connecticut Medicaid (HUSKY Health)·CT·Coding
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid has established a formal review process for claims that exceed NCCI Medically Unlikely Edit (MUE) limits. When claims are denied with EOB code 770 for exceeding MUE units, providers must resubmit the claim electronically with the excess units on a separate line using modifier GD, along with supporting documentation to justify medical necessity.
Action Required
Immediately: Billing team must establish new workflow for MUE denials with EOB code 770. When receiving these denials, void original claim if partially paid, then resubmit electronically with allowed MUE units on first line and excess units on separate line using modifier GD. Fax supporting documentation to 1-860-986-7995 or mail to DXC Technology, PO Box 2971 Hartford, CT 06104 within 30 days. Use blue or black ink on ACN Electronic Claim Cover Sheet. Claims not supported with documentation within 30 days will be denied.