CPT code 85041 represents an automated slide-based red blood cell (RBC) count performed by a laboratory analyst. This laboratory diagnostic procedure quantifies erythrocytes using microscopy combined with automated counting technology, and it is commonly ordered as part of hematologic evaluation and complete blood count workflows. Nationally, accurate coding for this service affects laboratory billing, aggregation of hematology utilization metrics, and alignment with clinical laboratory service reporting.

Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication covers payer coverage patterns, common modifiers associated with laboratory services, clinical context for when an automated slide RBC count is used, and how this service integrates into laboratory workflows.

Readers will learn the clinical purpose of CPT code 85041, typical sites of service, common billing considerations, and where to find related laboratory codes. The report also highlights benchmarking elements such as typical service utilization and payer coverage scope where available. Data not available in the input are explicitly noted; the focus remains on providing a concise national-level description and operational context for laboratories, billing teams, and policy analysts.