ICD-10 Code H11.411 – Vascular abnormalities of conjunctiva, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.411 – Vascular abnormalities of conjunctiva, right eye
What it is
This code identifies a vascular abnormality affecting the conjunctiva of the right eye. Use it when the chart documents an abnormal blood vessel change in that specific eye.
Clinical signs
Findings may include visible conjunctival vessel changes, localized redness, or a noted vascular lesion on eye exam. Clinical features vary; refer to documentation.
When to use this code
Use H11.411 when the provider documents a vascular abnormality of the conjunctiva limited to the right eye. It is appropriate for a confirmed ocular finding, not for nonspecific eye irritation or redness without that diagnosis.
If the record names a different conjunctival disorder, code that condition instead. Check documentation when laterality or the exact lesion type is unclear.
Do not use for
Do not use this code for general conjunctivitis, subconjunctival hemorrhage, or unspecified eye redness. Also avoid it when the abnormality is documented in the left eye or both eyes.
Coding tip
Verify laterality and the exact conjunctival diagnosis in the provider note before assigning H11.411.