ICD-10 Code H34.01 – Transient Retinal Artery Occlusion, Right Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H34.01 – Transient retinal artery occlusion, right eye
What it is
This code identifies a temporary blockage of blood flow in the retinal artery of the right eye. It refers to a transient ischemic event affecting vision, not a permanent retinal artery occlusion.
Clinical signs
Typical findings include sudden, temporary monocular vision loss or dimming in the right eye. Clinical features vary; refer to documentation, and confirm that the episode was transient rather than persistent.
When to use this code
Use H34.01 when the record clearly states transient retinal artery occlusion in the right eye. Apply it when the provider documents a temporary retinal arterial ischemic event affecting only the right eye, even if symptoms have resolved by the time of evaluation.
Do not use for
Do not use this code for permanent retinal artery occlusion, retinal vein occlusion, or nonspecific visual loss. Check documentation if the laterality is not stated or if the event is described only as a suspected vascular episode.
Coding tip
Verify both laterality and the word “transient” in the provider note before assigning H34.01.