AHA Coding Clinic® for ICD-9 - 2007 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Vaginal and Vulvar Carcinoma in Situ

Effective October 1, 2007, code 233.3, Carcinoma in situ of other and unspecified female genital organs, has been expanded to describe vaginal carcinoma in situ (vaginal intraepithelial neoplasia III) and vulvar carcinoma in situ (vulvar intraepithelial neoplasia III). These new codes parallel code 233.1, Carcinoma in situ of cervix uteri. Vaginal carcinoma in situ or vaginal intraepithelial neoplasia III (VAIN III) is a preinvasive condition, arising from the squamous epithelium. The condition is a precursor to cancer. VAIN III is typically multifocal, commonly occurs at the vaginal vault and may be associated with other genital neoplasias. Treatment...

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