Ambetter Health Billing Code Update for CPT Codes 80320-80377 Effective 10/01/2026

By October 1, 2026: Billing team must update billing system to deny or reject all claims using CPT codes 80320-80377 for Ambetter Health plans in Washington state. Create mapping of these codes to appropriate G-series bundled laboratory codes. Update claim submission logic to automatically route drug testing claims to G-series alternatives. Notify laboratory partners and providers of the code transition. Implement system validation rules to prevent submission of non-reimbursable CPT 80320-80377 codes to Ambetter. Contact Provider Relations Representative if clarification needed on which specific G-series codes apply to your practice. Failure to transition will result in claim denials and lost revenue.