F89
BillableUnspecified disorder of psychological development
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F89 an HCC code?
No. F89 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
F89 is the ICD-10-CM diagnosis code for unspecified disorder of psychological development. A disorder of psychological development that cannot be more specifically identified or classified. F89 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering pervasive and specific developmental disorders (f80-f89).
F89 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 is the most nonspecific code for developmental disorders; use only when no other F80-F88 code applies.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for F89 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.