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
Oct 1, 2024
We identified it
Jun 19, 2026
Summary
BCBSRI now requires anatomical modifiers (LT, RT, 50, etc.) for all surgical procedures (CPT codes 10000-69999) that have a Medicare bilateral indicator of '1'. Claims without proper anatomical modifiers risk duplicate payments, incorrect bundling, and unnecessary reviews.
Action Required
Immediately: Billing team must update system rules to require anatomical modifiers (LT, RT, 50) for all surgical procedure codes 10000-69999 with Medicare bilateral indicator '1'. Update encounter forms and EMR templates to prompt providers for laterality documentation. Train staff on proper modifier usage to prevent claim denials and payment delays.