ICD-10 Code H18.003 – Unspecified corneal deposit, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.003 – Unspecified corneal deposit, bilateral
What it is
This code identifies deposits found in both corneas when the exact type is not documented. Use it when the record confirms bilateral corneal deposits but does not specify the cause or material.
Clinical signs
Findings may include visible corneal opacities or deposits on eye examination, sometimes with blurred vision or light sensitivity. Clinical features vary; refer to documentation.
When to use this code
Use H18.003 when the ophthalmology note states bilateral corneal deposits and no more specific diagnosis is available. It also fits when the provider documents corneal degeneration or deposit without naming the deposit type. Check documentation if the cause is known, because a more specific code may apply.
Do not use for
Do not use this code for unilateral corneal deposits or for a clearly identified corneal disorder with its own code. Do not assign it when the note only describes a corneal scar, ulcer, or edema.
Coding tip
If the chart says only “corneal deposit,” confirm whether it is bilateral before selecting H18.003.