ICD-10 Code H02.516 – Abnormal innervation syndrome left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.516 – Abnormal innervation syndrome left eye, unspecified eyelid
What it is
This code identifies an abnormal nerve supply affecting the left eye with the eyelid not further specified. Use it when the record documents abnormal innervation syndrome and does not name a more specific eyelid disorder.
Clinical signs
Clinical features vary; refer to documentation. You may see eyelid movement abnormalities, eyelid droop, or unusual eyelid positioning related to abnormal innervation of the left eye.
When to use this code
Use H02.516 when the clinician documents abnormal innervation syndrome involving the left eye and the eyelid is described only as unspecified. This may apply in ophthalmology or neurology notes when the anatomic detail is limited. Check documentation for laterality and eyelid specificity before assigning the code.
Do not use for
Do not use this code for general ptosis, blepharospasm, or other clearly named eyelid disorders unless abnormal innervation syndrome is specifically documented. If the note names a different cause or a more specific eyelid condition, code that instead.
Coding tip
Confirm both laterality and the phrase “unspecified eyelid” in the chart before coding H02.516.