Z85.810
BillablePersonal history of malignant neoplasm of tongue
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is Z85.810 an HCC code?
No. Z85.810 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
Z85.810 is the ICD-10-CM diagnosis code for personal history of malignant neoplasm of tongue. A person who previously had cancer of the tongue. This code indicates a history of this condition for follow-up care and monitoring. Z85.810 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).
Z85.810 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.
Tongue cancer is a type of oral cavity cancer; ensure you're not confusing it with other mouth cancers.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Z85.810 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Tongue cancer is a type of oral cavity cancer; ensure you're not confusing it with other mouth cancers
- •Active tongue cancer requires a C-code; this Z-code is only for personal history