CommercialAdministrativeHigh impact
[Ohio] Review Excludes1 Notes to help keep claims on track
Anthem BCBS·OH·Provider Bulletin
Effective date
Oct 1, 2026
We identified it
Sep 2, 2026
Summary
Effective October 1, 2026, Anthem Blue Cross and Blue Shield in Ohio will implement enhanced Excludes1 claim editing to enforce ICD-10-CM coding standards. Billing teams must review Excludes1 Notes before submitting claims to prevent diagnosis code combinations that violate coding rules. Claims with incorrect code combinations will be rejected, requiring correction or formal dispute with documentation.
Action Required
By September 30, 2026: Billing team must implement the following: (1) Update all staff training materials and coding guidelines to include mandatory review of ICD-10-CM Excludes1 Notes before claim submission—specifically emphasizing category-level notes (first 3 characters) that apply to all codes within that category and code-specific notes; (2) Audit current claim templates and billing software to ensure diagnosis code combination validation is enabled; (3) Create a reference guide or checklist for coders documenting common Excludes1 conflicts in your specialty; (4) Establish a process for providers to document clinical justification when diagnosis codes appear to conflict, as these may be submitted as disputes with supporting documentation via Availity. Consequences: Claims with Excludes1 violations will be rejected, causing processing delays, increased denial rates, and revenue cycle impact. Staff must verify coding accuracy BEFORE submission to minimize claim corrections and disputes.