MedicaidBilling CodesMedium impact
Changes in Billing for Helicopter Services
Illinois Medicaid - HFS·IL · Emergency Medicine, Critical Care·Provider Notice
Effective date
Jun 1, 2008
We identified it
Jun 21, 2026
Summary
Effective June 1, 2008, helicopter transport billing requires specific modifier usage: use A0431 with U3 modifier for helicopter transport plus team services, and A0431 without modifier for transport-only or team-only services.
Action Required
By June 1, 2008: Billing team must update system to require U3 modifier with A0431 when billing for both helicopter transport and team services. Use A0431 without modifier for transport-only or team-only billing. Update billing software rules and train staff on proper modifier usage. Contact Bureau of Comprehensive Health Services at 1-877-782-5565 for billing questions.