All PlansReimbursementMedium impact
Procedure Code and Fee Schedule Updates
BCBS Illinois·IL · Allergy & Immunology, Pharmacy·General
Effective date
Sep 1, 2026
We identified it
Aug 21, 2026
Summary
Blue Cross Blue Shield of Illinois is updating fee schedules for select CPT codes in the ranges 90635-90756 and Q2034-Q2039, effective September 1, 2026. These updates reflect Centers for Medicare & Medicaid Services revisions to the resource-based relative value scale. Billing teams must obtain updated fee schedules and ensure claims submitted on or after the effective date use the new reimbursement rates.
Action Required
By August 31, 2026: Billing team must request updated fee schedule details using the Fee Schedule Request Form on the BCBSIL website, specifically referencing the August 20, 2026 Blue Review update. For professional providers on PPO networks, use the Availity Essentials electronic tool to obtain contracted price allowances for affected codes in the 90635-90756 and Q2034-Q2039 ranges. Update billing software fee schedules to reflect new reimbursement rates before September 1, 2026. Verify which specific codes within these ranges are affected (not all codes in the ranges are impacted). Train billing staff on the changes and monitor claims submitted on or after September 1 to ensure proper reimbursement application. Failure to update fee schedules may result in incorrect claim submission and payment denials or underpayment.