SEER Inquiry System - Question 20081042 Details

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Produced: 05/02/2026 3:25 PM

Question 20081042

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Inquiry Details

References:

#1: ICD-O-3

#2: 2007 SEER Manual, C-997

Question:

Primary Site/CS Extension--Lymphoma: How are these fields coded for an epidural lymphoma that extends into the bone marrow of the adjacent vertebral body?

Discussion:

Answer:

For cases diagnosed prior to 1/1/2010:After verifying that the lymphoma originated in the epidural space, code to C729 [nervous system, NOS (epidural)]. This is a rare type of extranodal lymphoma.

Assign CS extension code 80 for lymphoma with bone marrow involvement.

For cases diagnosed 1/1/10 and later, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

Cancer Site Category:

Lymphoma

Data Item Category:

Primary site

Other Category:

N/A

Year:

2008