ICD-10 Code C52 – Malignant neoplasm of vagina (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C52 – Malignant neoplasm of vagina
What it is
C52 identifies a malignant tumor arising in the vagina. Use it when the record documents primary vaginal cancer, not cancer that has spread to the vagina from another site.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include abnormal vaginal bleeding, discharge, pain, or a visible vaginal mass, but diagnosis should be supported by pathology or specialist evaluation.
When to use this code
Use C52 when the provider documents malignant neoplasm of the vagina or primary vaginal cancer. It also fits confirmed cases being followed after diagnosis, if the encounter is still for the vaginal malignancy. Check documentation when the site is uncertain or when the tumor may represent extension from another primary cancer.
Do not use for
Do not use C52 for benign vaginal lesions, dysplasia, or inflammatory conditions. Do not use it when the vagina is involved by metastasis from another primary site; code the primary cancer instead.
Coding tip
Confirm the primary site in the pathology or oncology note before assigning C52.