An official website of the United States government
Home
SEER Inquiry System - Report
Produced: 10/11/2025 5:15 PM
Question 20180100
Inquiry Details
References:
#1: 2018 SEER Manual, 6-7. Reportability
#2: ICD-O-3, 188
Question:
Reportability/Primary Site--Skin: Is vulvar intraepithelial neoplasia III (VIN III) or associated invasive squamous cell carcinoma reportable when stated to be of the or or ? See Discussion.
Discussion:
Example: Operative report states, partial simple vulvectomy, anoscopy with normal-appearing clitoris, clitoral prepuce, bilateral labia majora, and labia minora. There is a 1.5 x 1 cm raised, hyperpigmented lesion which appears consistent with VIN 3 on the perineal body, just to the right of midline, and not touching the midline. It goes quite close to the anus but is not touching the anus.
Final diagnosis on resection is, Invasive squamous cell carcinoma arising in a background of high-grade squamous intraepithelial neoplasia (VIN III) with the following features: Location: perineum. Focal invasion arising in setting of 1 cm area of VIN III.
Answer:
Squamous carcinoma and squamous intraepithelial neoplasia III arising in the skin of the perineum (C445) are not reportable. Even though the abreviation "VIN III" is used in this example, this lesion does not involve the vulva. Since it involves the perineum, and skin of perineum is coded to C445, it is not reportable.
Neoplasms arising in skin (C44) with the following histologies are not reportable.
--Malignant neoplasm (8000-8005)
--Epithelial carcinoma (8010-8046)
--Papillary and squamous cell carcinoma (8050-8084)
--Squamous intraepithelial neoplasia III (8077) arising in perianal skin (C445)
--Basal cell carcinoma (8090-8110)
