ICD-10 Code H02.051 – Trichiasis without entropion right upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.051 – Trichiasis without entropion right upper eyelid
What it is
Use this code for inward-growing eyelashes on the right upper eyelid when the eyelid margin itself is not turned inward. It identifies a localized eyelash malposition, not a broader eyelid inversion.
Clinical signs
Typical findings include lashes rubbing the eye, foreign-body sensation, tearing, redness, or irritation. Clinical features vary; refer to documentation.
When to use this code
Assign H02.051 when the record specifies trichiasis in the right upper eyelid and states there is no entropion. Use it for ophthalmology notes, problem lists, or assessments that clearly identify the side and lid involved. Check documentation if the laterality or presence of entropion is unclear.
Do not use for
Do not use this code if the eyelid is turned inward, which indicates entropion instead of isolated trichiasis. Avoid it when the documentation names a different eyelid or does not specify the right upper lid.
Coding tip
Confirm both laterality and the absence of entropion before assigning H02.051.