ICD-10 Code H10.511 – Ligneous conjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.511 – Ligneous conjunctivitis, right eye
What it is
H10.511 identifies ligneous conjunctivitis affecting the right eye. It is a rare, chronic conjunctival inflammation that forms firm, woody-appearing pseudomembranes on the eyelid or conjunctival surface.
Clinical signs
Typical findings include recurrent, thick, fibrinous membranes on the conjunctiva, often with redness and irritation. Clinical features vary; refer to documentation, especially if the record specifies the right eye.
When to use this code
Use this code when the provider documents ligneous conjunctivitis limited to the right eye. It is appropriate for outpatient, inpatient, or specialist notes that clearly identify the laterality. If the chart only says “ligneous conjunctivitis” without eye laterality, check documentation.
Do not use for
Do not use this code for conjunctivitis of another cause, or when the left eye, both eyes, or unspecified eye is documented instead. Do not assume laterality from context alone.
Coding tip
Verify laterality in the assessment or impression before assigning H10.511.