ICD-10 Code H02.511 – Abnormal innervation syndrome right upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.511 – Abnormal innervation syndrome right upper eyelid
What it is
This code identifies an abnormal nerve supply affecting the right upper eyelid. It is used when eyelid movement or position is altered because of atypical innervation, not a primary skin or muscle disorder.
Clinical signs
Findings may include abnormal eyelid position, involuntary eyelid movement, or inconsistent lid elevation linked to nerve dysfunction. Clinical features vary; refer to documentation.
When to use this code
Use H02.511 when the provider documents abnormal innervation syndrome specifically in the right upper eyelid. Code it when the record clearly links the eyelid abnormality to nerve misdirection or dysinnervation.
Do not assume laterality from general eyelid findings. If the note only says eyelid ptosis, spasm, or weakness without this diagnosis, check documentation before assigning this code.
Do not use for
Do not use this code for nonspecific eyelid droop, trauma, infection, or general neurologic disease without documented abnormal innervation syndrome. Check documentation.
Coding tip
Confirm the right-sided laterality and the exact provider wording before coding, since this diagnosis is specific and not interchangeable with other eyelid disorders.