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Question 20020057

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References:

Question:

Histology (Pre-2007)--Melanoma: What code is used to represent the histology "radial growth phase: melanoma, superficial spreading type; vertical growth phase: epithelioid type"? See discussion.

Discussion:

Can the "growth phase" be used to code histology? If so, would the histology be epithelioid cell melanoma (8771/3)?

Answer:

For tumors diagnosed prior to 2007:

Code the Histology field to 8771/3 [epithelioid cell melanoma]. The "growth phase" information in this case describes the horizontal spread and the "invasive" or vertical growth through the layers of skin.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

Cancer Site Category:

Melanoma

Data Item Category:

Histology

Other Category:

N/A

Year:

2002