CPT code 78300 represents a limited-area bone scan (scintigraphy), a nuclear medicine imaging procedure in which a radionuclide is injected and targeted images are acquired to evaluate a single bone or joint. This procedure is important for diagnosing focal bone disease, evaluating pain or suspected localized injury, and guiding clinical management when a full-body scan is not required. Nationally, bone scintigraphy remains a key diagnostic tool in musculoskeletal and oncologic care pathways, influencing imaging utilization and care coordination across outpatient imaging centers and hospital radiology departments.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical indications and service context, typical sites of service, common modifier usage noted in billing practice, and the payer landscape relevant to reimbursement and prior authorization norms. The publication summarizes benchmarks where available, highlights policy considerations that affect utilization of limited-area bone scans, and provides clinical context to help administrative and clinical stakeholders understand when CPT code 78300 is used versus other nuclear medicine imaging codes. Data not available in the input is identified explicitly where applicable.