ICD-10 Code H30.20 – Posterior cyclitis, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H30.20 – Posterior cyclitis, unspecified eye
What it is
This code identifies inflammation of the posterior part of the ciliary body in an unspecified eye. Use it when the record confirms posterior cyclitis but does not specify left or right eye.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include ocular pain, redness, blurred vision, and evidence of intraocular inflammation on eye examination.
When to use this code
Use H30.20 when the provider documents posterior cyclitis and the affected eye is not stated. It also fits cases where the diagnosis is confirmed, but laterality is unavailable in the chart. If the note names a specific eye, choose the laterality-specific code instead.
Do not use for
Do not use this code for anterior uveitis, iritis, or other non-posterior inflammatory eye disorders. Check documentation if the diagnosis is broader than posterior cyclitis or if the affected eye is specified.
Coding tip
Confirm both the anatomic diagnosis and laterality before assigning H30.20.