Regional Nodes Positive
Notes
**Note 1:** Record this field even if there has been preoperative treatment.
**Note 2:** Lymph nodes with isolated tumor cells (ITCs) are counted as positive lymph nodes. ITCs are defined as any tumor deposits in lymph nodes less than or equal to 0.2 mm.
**Note 3:** Although satellite nodules and in-transit metastasis are coded under Regional Lymph Nodes (N), DO NOT count as Regional Nodes Positive in this field.
See the [SEER Program Coding Manual](https://seer.cancer.gov/tools/codingmanuals/index.html) for coding instructions.
Default
99
| Code |
Description |
| 00 |
All nodes examined negative |
| 01-89 |
1 - 89 nodes positive (code exact number of nodes positive) |
| 90 |
90 or more nodes positive |
| 95 |
Positive aspiration or core biopsy of lymph node(s) |
| 97 |
Positive nodes - number unspecified |
| 98 |
No nodes examined |
| 99 |
Unknown if nodes are positive; not applicable
Not documented in medical record |
