Organization | Field Name | ID | Required |
---|---|---|---|
KCR | Behavior Code (BehaviorCode) | 30100 | yes |
NAACCR | Behavior Code ICD-O-3 | 523 | yes |
Field Length: 1
Record the behavior of the tumor being reported. The fifth digit of the morphology code is the behavior code.
Instructions for Coding
· Code 3 if any invasion is present, no matter how limited.
· If the specimen is from a metastatic site, code the histology of the metastatic site and code 3 for behavior
. Gastro-intestinal stromal tumors (GIST) and thyomas are frquently non-malignant. However, they must be abstracted and assigned a Behavior Code of 3 if they are noted to have multiple foci, metastasis, or positive lymph nodes.
Note: The ICD-O-3 behavior code for juvenile astrocytoma (9421/1) is coded as 3. Refer to the section "Case Reporting Requirements."
Code |
Label |
Description |
0 |
Benign |
Benign |
1 |
Borderline |
Uncertain whether benign or malignant |
Borderline malignancy |
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Uncertain malignant potential |
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2 |
In situ and/or carcinoma in situ |
Adenocarcinoma in an adenomatous polyp with no invasion of stalk |
Clark level 1 for melanoma (limited to epithelium) |
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Comedocarcinoma, noninfiltrating (C50._) |
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2 |
Synonymous with in situ |
Confined to epithelium |
Hutchinson melanotic freckle, NOS (C44._) |
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Intracystic, noninfiltrating |
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Intraductal |
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Intraepidermal, NOS |
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Intraepithelial, NOS |
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Involvement up to, but not including the basement membrane |
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Lentigo maligna (C44._) |
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Lobular neoplasia (C50._) |
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Lobular, noninfiltrating (C50._) |
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Noninfiltrating |
||
No stromal involvement |
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Papillary, noninfiltrating, or intraductal |
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Precancerous melanosis (C44._) |
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Queyrat erythroplasia (C60._) |
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AIN III (C21.1) |
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LIN III (C32.0-C32.9) |
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SIN III (squamous intraepithelial neoplasia) |
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VAIN III (C52.9) |
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VIN III (C51._) |
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Bowen disease (not reportable for C44._) |
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3 |
Invasive |
Invasive or microinvasive |