EOD Mets

This input is used for staging

Notes

**Note 1:** **Benign/borderline tumors** * Code 00 for benign (behavior /0) and borderline (behavior /1) tumors. **Note 2:** **Leptomeningeal metastases** * Leptomeningeal metastases, also known as carcinomatous meningitis and meningeal carcinomatosis, refers to the spread of malignant cells through the CSF space. * These cells can originate from primary CNS tumors (e.g., in the form of drop metastases), as well as from distant tumors that have metastasized via hematogenous spread (code 70).

Default

NAACCR Item

NAACCR #776

Code	Description	SS2018 M
00	No distant metastasis Unknown if distant metastasis	NONE
10	Distant lymph node(s)	D
70	Metastasis within CNS and CSF pathways * Carcinomatous meningitis * Drop metastasis * Leptomeningeal metastases * Meningeal carcinomatosis Metastasis outside the CNS * Extra-neural metastasis Carcinomatosis Distant metastasis WITH or WITHOUT distant lymph node(s) Distant metastasis, NOS	D
99	Death Certificate Only	U

(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998 (2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001. (3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL) (4) Laws, E.R., Curran, W.J., et al. **Brain and Spinal Cord**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017