ICD-10 Code H11.4 – Other conjunctival vascular disorders and cysts (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.4 – Other conjunctival vascular disorders and cysts
What it is
H11.4 identifies conjunctival vascular disorders and cysts that are not classified elsewhere. Use it for documented conjunctival vascular lesions or cystic changes involving the conjunctiva.
Clinical signs
Findings may include a visible conjunctival vascular lesion, localized swelling, or a cystic-appearing conjunctival mass. Clinical features vary; refer to documentation.
When to use this code
Use H11.4 when the provider documents a conjunctival vascular disorder or cyst and does not assign a more specific diagnosis. It fits cases where the abnormality is limited to the conjunctiva and is not described as another named eye disorder. Check documentation when the record is vague.
Do not use for
Do not use this code for conjunctivitis, corneal disorders, or lesions arising from other eye structures. If the documentation names a different conjunctival condition, code that condition instead.
Coding tip
Confirm that the lesion is conjunctival and that the provider has not documented a more specific diagnosis before assigning H11.4.