CPT code 19281 designates image-guided placement of a localization device in the breast under mammographic guidance for the first lesion. This code captures a routine preoperative or diagnostic step that facilitates accurate surgical excision or targeted biopsy and is widely used in breast imaging and surgical workflows. Nationally, proper coding of localization procedures affects facility and professional billing, resource planning in radiology departments, and consistency in quality measurement for breast care pathways. Key payers considered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will gain a concise understanding of what CPT code 19281 represents clinically and operationally, where the service is typically performed, and which major payers are relevant for coverage and claims processing. The publication provides benchmarks for utilization patterns, notes common billing modifiers and payer-specific coding considerations, and summarizes clinical context linking localization to biopsy and surgical planning. Data not available in the input is identified where applicable, and the focus remains national policy and billing implications rather than state-level details.