ICD-10 Code H15.12 – Nodular episcleritis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H15.12 – Nodular episcleritis
What it is
Nodular episcleritis is inflammation of the episclera, the thin tissue over the white of the eye, with a localized raised nodule. It is usually a benign, self-limited eye condition.
Clinical signs
Typical findings include sectoral redness, tenderness, and a movable, elevated nodule on the episclera. Clinical features vary; refer to documentation if the note does not clearly describe nodular episcleritis.
When to use this code
Use H15.12 when the provider documents nodular episcleritis or clearly describes episcleral inflammation with a nodular lesion. Apply it for confirmed episodes affecting one or both eyes if laterality is not otherwise specified. Check documentation when the note only says “red eye” or “eye inflammation.”
Do not use for
Do not assign this code for conjunctivitis, scleritis, or nonspecific ocular redness without episcleral involvement. If the record does not support nodular episcleritis, check documentation.
Coding tip
Code only when the provider names nodular episcleritis or documents the nodular episcleral lesion clearly.