ICD-10 Code H02.43 – Paralytic ptosis of eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.43 – Paralytic ptosis of eyelid
What it is
H02.43 identifies drooping of the upper eyelid caused by paralysis of the eyelid-lifting muscles or their nerve supply. Use it when the ptosis is documented as paralytic rather than mechanical or congenital.
Clinical signs
Typical findings include a visibly lowered eyelid, reduced eyelid elevation, and possible asymmetry between the eyes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents paralytic ptosis, including cases linked to nerve palsy or other paralysis affecting eyelid function. It applies when the record clearly identifies the ptosis as paralytic and not due to trauma, swelling, or age-related laxity. Check documentation if the cause is unclear.
Do not use for
Do not use H02.43 for congenital ptosis, mechanical ptosis, or unspecified drooping of the eyelid. If the chart does not state paralysis, choose the more specific documented diagnosis or check documentation.
Coding tip
Confirm the provider’s wording includes “paralytic” or an equivalent cause before assigning H02.43.