SEER Inquiry System - Question 20100112 Details

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Produced: 11/25/2024 1:46 AM

Question 20100112

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Inquiry Details

References:

ICD-O-3

Question:

Primary site--Heme & Lymphoid Neoplasms: Is C448 [overlapping lesion of skin] or C449 [skin, NOS] the appropriate site code for a 2008 diagnosis of mycosis fungoides involving over 40 percent of the skin surface, including both upper and lower extremities and trunk?

Discussion:

Answer:

Code the primary site to C449 [skin, NOS]. The code C448 should be used when there is a single overlapping lesion that includes all the disease. The patient has extensive skin coverage involving multiple skin subsites (upper and lower extremities and the trunk), but it is unlikely there is ONE plaque (one lesion) overlapping all these different skin subsites. The disease has more likely presented as multiple plaques (lesions) in these different areas.

Cancer Site Category:

Heme & Lymphoid Neoplasms

Data Item Category:

Primary site

Other Category:

N/A

Year:

2010