ICD-10 Code H02.423 – Myogenic ptosis of bilateral eyelids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.423 – Myogenic ptosis of bilateral eyelids
What it is
H02.423 identifies drooping of both upper eyelids caused by a muscle problem rather than nerve injury or excess skin. Use it when documentation states myogenic ptosis affecting both eyelids.
Clinical signs
Typical findings include bilateral eyelid droop, reduced palpebral fissure height, and possible visual obstruction from the lids. Clinical features vary; refer to documentation.
When to use this code
Use H02.423 when the record clearly documents myogenic ptosis in both eyelids, including congenital or acquired muscle-related ptosis if specified that way. It is appropriate when the provider identifies the condition as bilateral and myogenic. Check documentation if the cause is unclear or if only one eyelid is affected.
Do not use for
Do not use this code for unilateral ptosis, neurogenic ptosis, or ptosis due to mechanical causes such as excess eyelid tissue. Check documentation when the etiology is not stated.
Coding tip
Confirm both laterality and cause in the note before assigning H02.423.