C51.9

ICD-10-CM Coding Rules

• C51.9

Applicable To

• Malignant neoplasm of external female genitalia NOS

• Malignant neoplasm of pudendum

Approximate Synonyms

• Basal cell carcinoma of vulva

• Basal cell carcinoma, vulva

• Cancer of the vulva

• Cancer of the vulva, adenocarcinoma

• Cancer of the vulva, disseminated

• Cancer of the vulva, pagets disease

• Cancer of the vulva, pagets disease, invasive

• Cancer of the vulva, recurrent to primary site

• Cancer of the vulva, squamous cell

• Cancer of vulva, disseminated

• Invasive vulval paget’s disease

• Malignant melanoma of vulva

• Melanoma, vulva

• Paget’s disease of vulva

• Primary adenocarcinoma of vulva

• Primary malignant neoplasm of vulva

• Recurrent primary malignant neoplasm of vulva

• Squamous cell carcinoma of vulva

Clinical Information

• Primary or metastatic malignant neoplasm involving the vulva.

• Vulvar cancer is a rare type of cancer. It forms in a woman’s external genitals, called the vulva. The cancer usually develops slowly over several years. First, precancerous cells grow on vulvar skin. This is called vulvar intraepithelial neoplasia vin), or dysplasia. Not all vin cases turn into cancer, but it is best to treat it early. Often, vulvar cancer doesn’t cause early symptoms. However, see your doctor for testing if you notice

Details

• C51.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM C51.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C51.9 – other international versions of ICD-10 C51.9 may differ.