SEER Inquiry System - Question 20041096 Details

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Produced: 11/29/2024 5:45 AM

Question 20041096

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Inquiry Details

References:

#1: ICD-O-3, 29, 66, 184

#2: 2004 SEER Manual, 90

Question:

Behavior Code--Breast: How is this field coded for a "non-invasive Paget disease of the breast?" See Discussion.

Discussion:

Historically, SEER collected Paget Disease of the breast with a behavior code of 3 [invasive]. There is no documentation to support this. The SEER EOD Manual only states that if the code is "05" [Pagets disease (without underlying tumor)], the behavior must be a 2 [in situ] or a 3 [invasive].

Answer:

Code the behavior as /2 [in situ] for noninvasive Paget disease of breast. Noninvasive is a synonym of in situ.

If the pathology report documents that the Paget disease is in situ, the matrix principle in ICD-O allows you to change the behavior code to match the pathologist's statement.

Cancer Site Category:

Breast

Data Item Category:

Behavior

Other Category:

N/A

Year:

2004