D27.1
BillableBenign neoplasm of left ovary
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is D27.1 an HCC code?
No. D27.1 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
D27.1 is the ICD-10-CM diagnosis code for benign neoplasm of left ovary. A non-cancerous tumor that develops in the left ovary, the female reproductive organ that produces eggs. D27.1 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).
D27.1 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.
Ensure laterality is documented as left; if documentation is unclear, query the provider before coding D27.9.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D27.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure laterality is documented as left; if documentation is unclear, query the provider before coding D27.9
- •This code is specific to the left ovary only; do not use for bilateral or right-sided lesions