H40.212
BillableAcute angle-closure glaucoma, left eye
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is H40.212 an HCC code?
No. H40.212 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
H40.212 is the ICD-10-CM diagnosis code for acute angle-closure glaucoma, left eye. A sudden, severe form of glaucoma in the left eye caused by a rapid increase in eye pressure, which is a medical emergency requiring immediate treatment. H40.212 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering glaucoma (h40-h42).
H40.212 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 an emergent condition; ensure documentation reflects acute presentation with symptoms like eye pain, vision changes, or redness.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H40.212 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is an emergent condition; ensure documentation reflects acute presentation with symptoms like eye pain, vision changes, or redness
- •Verify laterality is documented as left eye; do not use if bilateral or unspecified