By February 4, 2022: Billing teams must update systems to require site of service review for single-level cervical and lumbar spinal procedures (CPT codes 22533, 22551, 22554, 22558, 22600, 22612, 22630, 22633, 63020, 63045) and hysterectomy procedures (CPT codes 58260, 58262, 58263, 58267, 58270, 58275, 58280, 58290, 58291, 58292, 58294, 58550, 58552, 58553, 58554). Remove HCPCS code C1726 from billing system. Update prior authorization requirements for new intravitreal corticosteroid drugs and verify medical necessity criteria for IL-5 inhibitors and other specialty medications. Verify patient eligibility and site of service appropriateness before scheduling to prevent claim denials.