CPT code 19084 covers ultrasound-guided percutaneous breast biopsy for each additional separately reportable lesion after the first; placement of a localization device may be performed at the same encounter. This procedure code is important for accurate reporting of multi-lesion breast biopsy encounters and for distinguishing payment and resource use when multiple sites within the same breast are sampled. Nationally, correct use of CPT code 19084 supports clinical documentation, procedure tracking, and consistent claims adjudication for outpatient imaging and procedural settings.

Key payers addressed in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and coding intent, typical sites of service, and common modifiers used with this code. The analysis highlights benchmark considerations for multiple-lesion procedures, billing scenarios involving same-day localization, and documentation elements that support separate reporting for additional lesions. Policy updates, payer-specific payment nuances, and comparative benchmarks are summarized to aid coding, revenue cycle, and clinical teams in aligning documentation with billing practices. Data not available in the input is noted where applicable.