Z87.412
BillablePersonal history of vulvar dysplasia
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is Z87.412 an HCC code?
No. Z87.412 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Z87.412 is the ICD-10-CM diagnosis code for personal history of vulvar dysplasia. A patient's past history of vulvar dysplasia, which is an abnormal growth of cells on the external female genitalia that has been treated or resolved. Z87.412 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering persons with potential health hazards related to family and personal history and certain conditions influencing health status (z77-z99).
Z87.412 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Differentiate between dysplasia (abnormal cells) and other vulvar conditions; ensure documentation supports dysplasia diagnosis.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Z87.412 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Differentiate between dysplasia (abnormal cells) and other vulvar conditions; ensure documentation supports dysplasia diagnosis
- •This code indicates the condition is in the patient's history, not currently active