Note 1: Record this field even if there has been preoperative treatment.
Note 2: Lymph nodes with only isolated tumor cells (ITCs) are NOT counted as positive lymph nodes. Only lymph nodes with metastases greater than 0.2 mm (micrometastases or larger) should be counted as positive. If the pathology report indicates that nodes are positive but size of the metastases is not stated, assume the metastases are greater than 0.2 mm and code the lymph nodes as positive in this field.
|000||All ipsilateral axillary nodes examined negative|
|001-089||1 - 89 nodes positive
(code exact number of nodes positive)
|090||90 or more nodes positive|
|095||Positive aspiration of lymph node(s)|
|097||Positive nodes - number unspecified|
|098||No axillary nodes examined|
|099||Unknown if axillary nodes are positive; not applicable
Not documented in patient record