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ACCU Reference Laboratory Out of Network
Act
immediately
Effective date
Not stated in the notice
Identified
Oct 3, 2026
Summary
ACCU Reference Laboratory is now out-of-network for all Horizon and Braven Health members across all lines of business. Billing teams must redirect all laboratory services to preferred networks (LabCorp, Quest Diagnostics, or BioReference Laboratories) to avoid claim denials. Exception: Pathology services in hospital settings for Horizon managed care members remain allowed.
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What to do
immediately · 5 steps
01Billing team must update all laboratory ordering and billing workflows to direct members and samples to LabCorp, Quest Diagnostics, or BioReference Laboratories only.
02Remove ACCU Reference Laboratory from preferred lab lists in billing system and EMR.
03Providers must be notified of this change.
04Front desk and clinical staff should update any standing lab requisition templates.
05Document the exception for pathology services provided in hospital settings for Horizon managed care plans.
If missed: Failure to use preferred networks will result in out-of-network claim denials and member balance billing.
Original notice
ACCU Reference Laboratory Out of Network
horizonblue.com · Always check the source before changing claims.