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Patient had a post-op breast seroma. Does that code to 10160 or 19000? "Female presenting for ultrasound-guided seroma drainage of the right breast. The patient has a history of right breast cancer with skin sparing mastectomy with reconstruction Procedures: 1. Ultrasound-Guided seroma drainage - Right breast Site 1: The skin was prepped with alcohol and draped in sterile fashion.  Lidocaine 1 percent was administered for local anesthesia. The lesion of interest in the lower outer quadrant of the right breast was identified by ultrasound. Under direct sonographic guidance, 1 pass was made with an 18 gauge needle. Approximately 300 mL's of serous fluid was removed and sent for culture and cytology. Hemostasis was achieved and the skin was bandaged."