ICD-10 Code H02.432 – Paralytic ptosis of left eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.432 – Paralytic ptosis of left eyelid
What it is
H02.432 identifies drooping of the left upper eyelid caused by paralysis of the eyelid elevator muscles or their nerve supply. The eyelid position is low enough to affect the eye’s opening.
Clinical signs
You may see unilateral left eyelid droop with reduced lid elevation. Clinical features vary; refer to documentation for the underlying neurologic cause or associated eye findings.
When to use this code
Use this code when the record specifically documents paralytic ptosis affecting the left eyelid. It fits cases where the provider links the ptosis to paralysis, paresis, or a neurologic injury. Check documentation if laterality or cause is unclear.
Do not use for
Do not use this code for unspecified ptosis, congenital ptosis, or mechanical eyelid droop. If the note does not confirm paralysis or left-sided involvement, check documentation.
Coding tip
Confirm both laterality and paralytic etiology in the provider note before assigning H02.432.