H34.02
BillableTransient retinal artery occlusion, left eye
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is H34.02 an HCC code?
No. H34.02 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
H34.02 is the ICD-10-CM diagnosis code for transient retinal artery occlusion, left eye. A temporary blockage of the blood vessel that supplies the retina (the light-sensitive tissue at the back of the eye) in the left eye. The blockage resolves on its own without causing permanent vision loss. H34.02 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of choroid and retina (h30-h36).
H34.02 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.
Verify laterality is documented as left eye in the medical record; do not assume based on patient history.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H34.02 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify laterality is documented as left eye in the medical record; do not assume based on patient history
- •Distinguish between transient (H34.02) and permanent/central retinal artery occlusion (H34.01) as they have different clinical implications and prognoses