H40.039
BillableAnatomical narrow angle, unspecified eye
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is H40.039 an HCC code?
No. H40.039 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
H40.039 is the ICD-10-CM diagnosis code for anatomical narrow angle, unspecified eye. A structural condition where the drainage angle is anatomically narrow, increasing the risk of angle-closure glaucoma, affecting an unspecified eye. H40.039 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering glaucoma (h40-h42).
H40.039 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.
Avoid using this code if the affected eye can be determined from documentation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H40.039 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Avoid using this code if the affected eye can be determined from documentation
- •Request clarification from the provider regarding which eye(s) have the anatomical narrow angle