ICD-10 Code H02.433 – Paralytic ptosis of bilateral eyelids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.433 – Paralytic ptosis of bilateral eyelids
What it is
H02.433 identifies drooping of both upper eyelids caused by paralysis of the eyelid muscles or their nerve supply. Use it when documentation specifies bilateral paralytic ptosis, not simple age-related lid droop.
Clinical signs
Typical findings include bilateral upper eyelid droop with reduced lid elevation and possible visual obstruction. Clinical features vary; refer to documentation for the documented cause and laterality.
When to use this code
Use this code when the provider documents paralytic ptosis affecting both eyelids, such as after nerve injury, neurologic disease, or other paralysis-related causes. It fits ophthalmology, neurology, or postoperative notes that clearly state bilateral involvement.
Choose it only when the record supports paralysis as the reason for ptosis. If the note says ptosis without cause, or describes a different eyelid disorder, Check documentation.
Do not use for
Do not use H02.433 for congenital ptosis, mechanical ptosis, or unspecified eyelid droop. It is also incorrect for unilateral paralytic ptosis or nonparalytic causes.
Coding tip
Confirm both laterality and cause in the provider note before assigning H02.433.