ICD-10 Code H34.2 – Other retinal artery occlusions (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H34.2 – Other retinal artery occlusions
What it is
H34.2 identifies blockage of a retinal artery that does not fit a more specific retinal artery occlusion code. It refers to impaired blood flow to the retina, which can cause sudden visual loss.
Clinical signs
Typical findings include abrupt, painless decrease in vision and retinal ischemic changes on eye examination. Clinical features vary; refer to documentation for the exact vessel involved and whether the occlusion is partial or complete.
When to use this code
Use H34.2 when the provider documents an occlusion of a retinal artery and does not specify a more exact retinal artery code. It is appropriate for cases described as other, unspecified, or not otherwise classifiable retinal artery occlusion. Confirm the record supports arterial, not venous, retinal obstruction.
Do not use for
Do not use this code for retinal vein occlusion, central retinal artery occlusion, or branch retinal artery occlusion when those are documented. Check documentation if the note only states visual loss without confirming arterial occlusion.
Coding tip
Code the most specific retinal artery diagnosis documented, and query the provider if the vessel location is unclear.