CPT code 77085 covers measurement of bone mineral density of the axial skeleton with an assessment for vertebral fracture, a diagnostic service used to identify osteoporosis and other bone diseases. Nationally, this code matters because bone density testing guides fracture risk management, influences treatment decisions, and contributes to preventive care pathways for older adults and at-risk populations.

Key payers in coverage discussions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and typical settings, plus an outline of what to expect in payer coverage and billing practice. The publication summarizes common modifiers and billing considerations, standard sites of service, and the clinical context for ordering the study.

This resource provides benchmarks for utilization and payment where available, highlights relevant policy drivers that affect coverage nationally, and clarifies coding scope to aid accurate claims submission. It is intended for clinicians, billing professionals, and policy analysts seeking a practical reference to the clinical purpose and administrative handling of CPT code 77085.