Z87.721
BillablePersonal history of (corrected) congenital malformations of ear
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is Z87.721 an HCC code?
No. Z87.721 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
Z87.721 is the ICD-10-CM diagnosis code for personal history of (corrected) congenital malformations of ear. A patient who was born with an ear birth defect (such as ear canal abnormalities or hearing-related structural problems) that has been surgically corrected or resolved. Z87.721 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).
Z87.721 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.
This code documents corrected congenital ear abnormalities and may be relevant for hearing assessment follow-up.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Z87.721 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code documents corrected congenital ear abnormalities and may be relevant for hearing assessment follow-up
- •Document the specific ear defect and type of correction performed in the medical record