Data Last Updated: Sept. 13, 2023

Lymph Nodes Laterality

Notes

**Note:** Physician statement of lymph node laterality can be used to code this data item when no other information is available.
Code Description
0 No regional lymph node involvement
Non-invasive neoplasm (behavior /2)
1 Unilateral - all positive regional nodes with same laterality
OR only one regional node positive
2 Bilateral - positive bilateral regional lymph nodes
3 Laterality unknown - positive regional lymph nodes with unknown laterality
8 Not applicable: Information not collected for this case
(If this information is required by your standard setter, use of code 8 may result in an edit error.)
9 Not documented in medical record
Lymph node laterality not assessed or unknown if assessed