ICD-10 Code H02.411 – Mechanical ptosis of right eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.411 – Mechanical ptosis of right eyelid
What it is
Mechanical ptosis of the right eyelid means the upper lid droops because of a physical weight or obstruction, not nerve or muscle weakness. You code the right side when documentation clearly identifies the affected eyelid.
Clinical signs
Typical findings include a visibly low right upper eyelid that may partially cover the pupil or limit the visual field. Clinical features vary; refer to documentation for the underlying cause and laterality.
When to use this code
Use this code when the record states mechanical ptosis involving the right eyelid, such as drooping from excess tissue, a mass, or other external load. It is appropriate when the provider documents the condition as mechanical and right-sided. If the cause is described instead, check whether a more specific diagnosis is documented.
Do not use for
Do not use this code for ptosis caused by nerve palsy, myasthenia, or other non-mechanical etiologies. Check documentation if the side is not right or if the chart only notes eyelid droop without a mechanical cause.
Coding tip
Confirm both laterality and the word “mechanical” in the provider note before assigning H02.411.