CPT code 19297 denotes an add-on intraoperative procedure: placement of a single- or multichannel expandable balloon catheter for radiotherapy at the same session as a partial mastectomy, performed with image guidance. This code matters nationally because it captures a distinct, device-based step in breast-conserving surgery that supports delivery of targeted post-lumpectomy radiation, affecting billing, hospital workflow, and device utilization.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for catheter-based brachytherapy delivery at the time of partial mastectomy, the service setting typically involved (hospital OR or ambulatory surgical center), and common billing considerations tied to add-on procedure reporting. The publication summarizes benchmarks and coverage patterns where available and highlights policy and coding factors that influence claims submission and reimbursement pathways for this device-placement add-on. Data not available in the input is noted where coverage details, associated taxonomies, and ICD-10 mappings would normally appear.