High impact
Prior Authorization Changes for Some Commercial and Government Program Members
BCBS Montana·Effective Apr 1, 2026
Blue Cross Blue Shield of Montana is implementing significant prior authorization changes for commercial and government program members, with different review vendors handling various service categories. Commercial members will see changes starting April 1, 2026 (medical oncology code replacements) and July 1, 2026 (addition of radiation oncology, advanced imaging, molecular genetic lab, and drug codes), while Medicare Advantage members will have new Part B Step Therapy and various code additions effective July 1, 2026.