ICD-10 Code H02.056 – Trichiasis without entropion left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.056 – Trichiasis without entropion left eye, unspecified eyelid
What it is
This code identifies eyelashes on the left eye that grow inward and touch the eye surface, without eyelid turning inward. The eyelid involved is not specified.
Clinical signs
Common findings include eye irritation, foreign-body sensation, tearing, redness, and corneal irritation. Clinical features vary; refer to documentation.
When to use this code
Use H02.056 when the record documents trichiasis in the left eye and specifically states there is no entropion. Use it when the affected eyelid is not identified or the note says “unspecified eyelid.”
If the provider documents a different eye, entropion, or another eyelid disorder, choose the more specific code. Check documentation for laterality and eyelid details before assigning.
Do not use for
Do not use this code if trichiasis is due to entropion or if the chart does not confirm the left eye. Check documentation for the exact eyelid diagnosis.
Coding tip
Verify both laterality and the absence of entropion before coding H02.056.