184.4
ICD-9-CMThis code signifies a primary cancerous tumor originating in the vulva, where the specific anatomical location within the vulva (e.g., labia majora, clitoris) is not documented. It indicates a confirmed malignancy affecting the external female genitalia.
Apply this code when the medical record clearly states a diagnosis of vulvar malignancy, but the physician's documentation does not specify the exact subsite of the tumor. This is appropriate when pathology confirms malignancy but the precise location is not further elaborated.
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