ICD-10 Code H02.23C – Paralytic lagophthalmos, bilateral, upper and lower eyelids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.23C – Paralytic lagophthalmos, bilateral, upper and lower eyelids
What it is
This code identifies bilateral inability to fully close the upper and lower eyelids because of facial nerve or eyelid muscle paralysis. It documents lagophthalmos affecting both eyes.
Clinical signs
Typical findings include incomplete eyelid closure, visible sclera during attempted blinking, and eye exposure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states paralytic lagophthalmos involving both eyes and both eyelids, including upper and lower lids. Code it when the provider documents eyelid paralysis rather than simple eyelid retraction or dryness. Check documentation if the cause is not specified.
Do not use for
Do not use this code for unilateral lagophthalmos, nonparalytic eyelid closure problems, or nonspecific dry eye complaints. Do not assume the diagnosis from exposure symptoms alone.
Coding tip
Confirm bilateral involvement and paralytic etiology in the assessment before assigning H02.23C.