[California] Pharmacy NDC Validation
Anthem Blue Cross (California) is enforcing stricter National Drug Code (NDC) validation requirements for all pharmacy claims submitted to them, effective April 1, 2026. Providers must submit 11-digit NDCs in proper format with correct units of measure (UOM) and quantities on all drug-related professional and outpatient claims. Missing, incorrectly formatted, or mismatched NDCs will delay reimbursement.