T86.840
Non-billableCorneal transplant rejection
T86.840 is the ICD-10-CM code for Corneal transplant rejection. It is a non-billable category code — use a more specific child code such as T86.8401 for billing.
S00-T88 Injury, poisoning and certain other consequences of external causes
What this means — in plain language
MedlinePlus · NIHYour cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas. Problems with the cornea include: Refractive errors Allergies Infections Injuries Dystrophies - conditions in which parts of the cornea lose clarity…
Read more about Corneal Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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