ICD-10 Code H02.859 – Elephantiasis of unspecified eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.859 – Elephantiasis of unspecified eye, unspecified eyelid
What it is
This code identifies elephantiasis affecting an unspecified eye and eyelid. It describes marked enlargement and thickening from chronic lymphatic obstruction or similar tissue change, when the record does not specify laterality.
Clinical signs
Typical findings include persistent swelling, thickened eyelid tissue, and a heavy or distorted appearance of the eyelid. Clinical features vary; refer to documentation.
When to use this code
Use H02.859 when the provider documents elephantiasis of the eye or eyelid but does not state whether the right or left side is involved. It also fits when the note confirms the condition without offering a more specific eyelid or ocular diagnosis. Check documentation if the record uses a broader edema term instead.
Do not use for
Do not use this code for simple eyelid edema, infection, or trauma without documented elephantiasis. If the laterality is known, select a more specific code instead.
Coding tip
Verify that “elephantiasis” is explicitly documented before assigning this code.