SEER Inquiry System - Question 20061045 Details

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Produced: 02/28/2026 2:32 PM

Question 20061045

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References:

#1: 2004 SEER Manual, C-433, C-436. Appendix C

#2: 2004 SEER Manual, 109

Question:

CS Lymph Nodes/CS Mets at Dx--Melanoma: How are these fields coded for a melanoma primary when melanoma is identified in lymph nodes but no primary skin tumor is found? See Discussion.

Discussion:

Excisional biopsy of an inguinal lymph node revealed metastatic melanoma. Multiple skin biopsies did not reveal the primary site.

Subsequent lymph node dissection of superficial inguinal nodes showed microscopic focus of malignant melanoma in subcutaneous fat adjacent to previous procedure site. No evidence of metastatic melanoma in 7 lymph nodes. Dissection of external iliac lymph nodes showed no evidence of melanoma in 5 lymph nodes.

Answer:

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.

Code CS Lymph Nodes 80 [Lymph nodes, NOS]. Code CS Mets at DX 00 [None]. Since it cannot be determined whether the lymph nodes are regional or distant, code CS Lymph Nodes to lymph nodes, NOS.

Cancer Site Category:

Melanoma

Data Item Category:

N/A

Other Category:

N/A

Year:

2006