Medicare AdvantageAdministrativeMedium impact
New Prefix for Health Mate PPO Medicare Plan
Blue Cross Blue Shield of Rhode Island·RI·Provider Update
Effective date
Jan 1, 2020
We identified it
Jun 19, 2026
Summary
Blue Cross Blue Shield of Rhode Island changed the prefix codes for HealthMate PPO Medicare Plan members effective January 1, 2020. Members with HealthMate plans directly through Blue Cross now use prefix Z2M, while members with HealthMate plans through their group use prefix Z3M, replacing the previous ZBM prefix.
Action Required
Immediately: Billing team must update patient eligibility verification procedures to recognize new HealthMate PPO Medicare prefixes - use Z2M for direct Blue Cross members and Z3M for group plan members instead of ZBM. Update billing system configuration and train staff on new prefix identification to ensure proper claim routing.