D09.22
BillableCarcinoma in situ of left eye
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is D09.22 an HCC code?
No. D09.22 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
D09.22 is the ICD-10-CM diagnosis code for carcinoma in situ of left eye. Abnormal cell growth in the left eye that has not yet become invasive cancer but has the potential to develop into cancer if left untreated. D09.22 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering in situ neoplasms (d00-d09).
D09.22 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 is specific to the left eye; use D09.21 for the right eye and D09.23 for bilateral involvement.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D09.22 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.