ICD-10 Code H02.121 – Mechanical ectropion of right upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.121 – Mechanical ectropion of right upper eyelid
What it is
Mechanical ectropion of the right upper eyelid means the eyelid is turned outward because a mass, swelling, scarring, or other physical force is pulling it away from the eye. The right upper lid is specifically affected.
Clinical signs
You may see eyelid eversion, poor lid-globe contact, tearing, irritation, or exposed conjunctiva. Clinical features vary; refer to documentation, especially when the cause is a lesion, edema, or scar.
When to use this code
Use H02.121 when the record clearly states mechanical ectropion of the right upper eyelid. This is appropriate when the outward turning is due to a mechanical cause, not age-related laxity or facial nerve weakness. Check documentation for the underlying cause if it is described.
Do not use for
Do not use this code for ectropion of another eyelid, or for paralytic or involutional ectropion. If the note does not specify a mechanical cause, check documentation before assigning H02.121.
Coding tip
Confirm both laterality and the mechanical cause in the ophthalmology note before coding.