Question: What’s the code for an ultrasound-guided cryoablation of an adenoma of the left breast? North Carolina Subscriber Answer: Since you’re focusing on cryoablation, you’ll want to navigate your way through the CPT® index in the following order: You’ll reach your final destination at code 19105 (Ablation, cryosurgical, of fibroadenoma, including ultrasound guidance, each fibroadenoma). You’ll see in both the code description and in the parenthetical notes below 19105 that you should not report code 76942 (Ultrasonic guidance for needle placement (eg, biopsy, aspiration, injection, localization device), imaging supervision and interpretation) separately.