CPT code 78351 represents a dual-energy photon absorptiometry test to measure bone mineral density (BMD), a key diagnostic tool for detecting low bone mass and assessing osteoporosis-related fracture risk. This imaging procedure is widely used in clinical practice for preventive care and disease monitoring among older adults and patients with conditions that affect bone health. Nationally, accurate coding and coverage for BMD testing influence early diagnosis, clinical management decisions, and population health efforts to reduce fracture incidence.

Key payers addressed in this overview include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical purpose and typical settings for the service, along with national coverage context and commonly used modifiers and billing considerations (where provided). The publication highlights what providers and billing teams should expect about site-of-service patterns, clinical indications, and the role of CPT code 78351 in preventive and diagnostic care pathways.

This summary prepares payers, billing professionals, and clinical leaders to understand where 78351 fits in imaging service lines, what it measures clinically, and the types of documentation and coding attention that support appropriate use and reimbursement. Data not available in the input are noted where relevant.