ICD-10 Code H18.892 – Other specified disorders of cornea, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.892 – Other specified disorders of cornea, left eye
What it is
This code identifies a documented corneal disorder in the left eye that does not fit a more specific ICD-10 category. Use it when the chart names a distinct corneal condition, but no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Corneal disorders may be associated with pain, redness, blurred vision, foreign-body sensation, or visible corneal changes on examination.
When to use this code
Use H18.892 when the provider documents a specific left corneal disorder and records that it is “other specified” or otherwise not classified elsewhere. It may also fit when the diagnosis is clear but the exact named corneal condition is not represented by a more precise code.
Confirm laterality and wording in the note before assigning this code. If the record only says “corneal disorder” or is unclear, check documentation rather than guessing.
Do not use for
Do not use this code for unspecified corneal disease, bilateral conditions, or disorders of the right eye. Also avoid it when a more specific corneal diagnosis is documented.
Coding tip
Match the provider’s exact left-eye wording and code the most specific corneal diagnosis available.