ICD-10 Code H02.221 – Mechanical lagophthalmos right upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.221 – Mechanical lagophthalmos right upper eyelid
What it is
H02.221 identifies incomplete closure of the right upper eyelid caused by a mechanical problem, such as a mass, scarring, or structural distortion. The lid cannot fully close over the eye.
Clinical signs
Typical findings include visible eyelid gap on closure, exposure of the ocular surface, and possible irritation or dryness. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states mechanical lagophthalmos affecting the right upper eyelid. It fits cases where a documented structural cause prevents full lid closure, such as postoperative change, scarring, or a lesion. You should confirm laterality and the mechanical nature in the note.
Do not use for
Do not use this code for paralytic lagophthalmos, nonspecific eyelid closure problems, or left-sided/bilateral findings. Check documentation if the cause or laterality is not explicit.
Coding tip
Verify both the right upper eyelid laterality and the documented mechanical cause before assigning H02.221.