ICD-10 Code H02.234 – Paralytic lagophthalmos left upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.234 – Paralytic lagophthalmos left upper eyelid
What it is
Use this code for inability to fully close the left upper eyelid due to paralysis. It describes lagophthalmos caused by loss of eyelid motor function, not a simple eyelid malposition.
Clinical signs
Findings commonly include incomplete eyelid closure, visible sclera when attempting to close the eye, and exposure of the ocular surface. Clinical features vary; refer to documentation.
When to use this code
Use H02.234 when the provider documents paralytic lagophthalmos affecting the left upper eyelid. This may appear in notes describing facial nerve palsy or other paralysis-related eyelid dysfunction. Code it when the laterality and paralytic cause are clearly stated.
Do not use for
Do not use this code for nonspecific eyelid droop, mechanical ptosis, or lagophthalmos without paralysis. If the record does not confirm the left upper eyelid or paralytic cause, check documentation.
Coding tip
Verify both laterality and paralysis in the chart before assigning H02.234.