19101 Explanation (and I do agree this is probably the best code)
The physician removes tissue for biopsy. The physician makes an incision in the skin of the breast near the site of the supspect mass. the mass is identified and a sample of the lesion removed. This specimen is often examined immediately. If the lesion is benign, the incision is repaired with layered closure. If malignant, the incision may be closed pending a separate, more extensive surgical session. or a more extensive surgery may occur emmediately, in which case this code would not be reported. and under the covered dx's it does list some codes with nipple.