What is the CPT code for reexcision of lumpectomy along with sentinel node biopsy

The patient had a re-excision of her lumpectomy site along with a sentinel node biopsy. The physician removed two lymph nodes through an axillary incision. The procedure report notes that the lumpectomy cavity was opened and the entire inferior margin was excised from the anterior surface of the lumpectomy cavity to the posterior. Is it appropriate to report the re-excision with code 19302, Mastectomy, partial (eg, lumpectomy, tylectomy, quadrantectomy, segmentectomy); with axillary lymphadenectomy? Also,
if no lymph nodes were excised and only a re-excision of the lumpectomy site was performed, is it appropriate to report code 19301, Mastectomy, partial (eg, lumpectomy, tylectomy,
quadrantectomy, segmentectomy)?

Answer: 

The re-excision of breast tissue is reported with code 19301. Codes 38500, Biopsy or excision

of lymph node(s); open, superficial, and 38525, Biopsy or excision of lymph node(s); open, deep axillary node(s), may be reported for the sentinel node excision, as appro-priate. If the two nodes are superficial axillary nodes, code 38500 is reported. If the two nodes are deep axillary nodes, code 38525 is reported. If the surgeon performs an injection procedure for node identification, code 38792 is

also reported.

Additionally, because the procedure is clinically likely to occur within the usual postoperative period, modifier 58 should be appended to indicate that this is a related proce-dure by the same physician during the postoperative peri-od. It would not be appropriate to report code 19302 because the sentinel node biopsy is not an “axillary lym-phadenectomy” (ie, not an axillary node dissection).