CommercialBilling CodesHigh impact
Surgical Procedure Anatomical Modifier
Blue Cross Blue Shield of Rhode Island·RI · Orthopedics, General Surgery, Cardiothoracic Surgery +8 more·Physician / Facility
Effective date
Nov 1, 2024
We identified it
Jun 19, 2026
Summary
BCBSRI now requires anatomical modifiers (like -LT, -RT) for all surgical procedures with CPT codes 10000-69999 that have a Medicare bilateral indicator '1'. This ensures proper billing for procedures that can be performed on both sides of the body and prevents duplicate payments or bundling errors.
Action Required
Immediately: Billing team must update billing system to require anatomical modifiers (-LT, -RT, -50) for all surgical procedures with CPT codes 10000-69999 that have Medicare bilateral indicator '1'. Review and update encounter forms and EMR templates to prompt providers for anatomical location. Train staff on proper modifier usage. Claims without proper anatomical modifiers risk duplicate payments, incorrect bundling, and unnecessary medical record reviews.