Claim Adjustment Requests Must Be Filed Within 15 Months of Original Claim Finalization Date
Effective December 1, 2026, Highmark is implementing a new 15-month (455 calendar day) deadline for submitting claim adjustment requests, measured from the claim finalization date rather than receipt date. Claim adjustment requests submitted after this deadline will be automatically denied for untimely filing. This change applies to Commercial, Medicare Advantage, and Federal Employee Program (FEP) plans but excludes BlueCard Home.