ICD-10 Code H18.893 – Other specified disorders of cornea, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.893 – Other specified disorders of cornea, bilateral
What it is
This code identifies a corneal disorder affecting both eyes when the condition does not fit a more specific corneal diagnosis. Use it for documented bilateral corneal abnormalities that are otherwise specified.
Clinical signs
Clinical features vary; refer to documentation. Findings may include bilateral corneal opacity, irregular surface changes, or other nonspecific corneal abnormalities noted on eye examination.
When to use this code
Use H18.893 when the provider documents a bilateral corneal disorder and names it as “other specified” or gives a diagnosis not classified elsewhere. It is appropriate when the record supports corneal involvement in both eyes but does not identify a more specific code. Check documentation if the laterality or exact corneal condition is unclear.
Do not use for
Do not use this code for unilateral corneal disorders or for conditions with a more specific ICD-10-CM code. If the chart describes an unspecified corneal disorder without bilateral involvement, check documentation.
Coding tip
Confirm both laterality and the provider’s exact wording before assigning H18.893.