ICD-10 Code D07.1 – Carcinoma in situ of vulva (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D07.1 – Carcinoma in situ of vulva
What it is
D07.1 identifies carcinoma in situ of the vulva, meaning abnormal cells are present in the vulvar epithelium but have not invaded deeper tissue. Use this code when documentation states vulvar intraepithelial neoplasia or carcinoma in situ.
Clinical signs
Clinical features may include vulvar pruritus, burning, pain, or a visible lesion, but findings can be nonspecific. Diagnosis is usually confirmed by biopsy; clinical features vary; refer to documentation.
When to use this code
Use D07.1 when the provider documents carcinoma in situ of the vulva, vulvar intraepithelial neoplasia, or an equivalent noninvasive vulvar neoplasm. Code it from pathology, consult notes, or discharge summaries when the diagnosis is explicit.
Apply this code for confirmed lesions limited to the vulva without invasion. If the record only mentions abnormal screening or a suspected lesion, check documentation before assigning the code.
Do not use for
Do not use D07.1 for invasive vulvar cancer or for nonspecific vulvar dysplasia without a clear carcinoma in situ diagnosis. Check documentation if the site or behavior is unclear.
Coding tip
Match the pathology wording exactly; if the note says “in situ,” “noninvasive,” or VIN with carcinoma in situ, D07.1 is usually the correct choice.