Dysplasia of vagina

This code signifies the presence of abnormal cell growth within the vaginal lining, which is not yet cancerous but has the potential to become malignant. It represents a precancerous lesion, often detected during routine gynecological screenings.

Apply this code when documentation specifies a diagnosis of vaginal dysplasia, intraepithelial neoplasia of the vagina (VAIN), or atypical cells of undetermined significance (ASC-US) or low-grade squamous intraepithelial lesion (LSIL) when the biopsy confirms dysplasia. This diagnosis is typically made following a colposcopy and biopsy.

• Ensure the documentation clearly states "dysplasia" or "intraepithelial neoplasia" of the vagina, not just atypical cells.
• Do not confuse with cervical dysplasia (CIN), which has separate codes.
• If the dysplasia is specified as mild, moderate, or severe, this code still applies as ICD-9-CM does not offer further specificity for vaginal dysplasia grades.