MedicaidBilling CodesMedium impact
Developmental and Behavioral Screens in Primary Care
Connecticut Medicaid (HUSKY Health)·CT · Family Medicine, Internal Medicine, General Practice +1 more·Provider Bulletin
Effective date
Nov 1, 2015
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid (HUSKY Health) now requires specific modifiers U3 (positive screen) and U4 (negative screen) when billing developmental screening codes 96110 and behavioral screening codes 96127 for patients under 18. Claims will deny without these modifiers.
Action Required
Immediately: Billing team must update billing system to require modifiers U3 (positive result) or U4 (negative result) when submitting CPT codes 96110 or 96127 for HUSKY Health patients under 18. Update encounter forms to remind providers to document screen results. Claims will deny without proper modifiers for physicians, APRNs, physician assistants, and medical clinics.