ICD-10 Code H22 – Disorders of iris and ciliary body in diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H22 – Disorders of iris and ciliary body in diseases classified elsewhere
What it is
Code H22 identifies iris and ciliary body disorders that are caused by another underlying disease. Use it when the eye condition is secondary, not a primary diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include inflammation, pain, redness, photophobia, or visible changes in the iris or ciliary body, but you should code only what is documented.
When to use this code
Use H22 when the provider documents a disorder of the iris or ciliary body as due to another condition, such as a systemic disease or another eye disorder. The record should link the eye finding to the underlying cause. If the cause is not stated, check documentation before coding.
Do not use for
Do not use H22 for primary iris or ciliary body disorders without an underlying disease. Do not use it when documentation supports a different, more specific eye diagnosis.
Coding tip
Always capture the underlying disease first, then verify that the eye disorder is documented as secondary.