ICD-10 Code H20.21 – Lens-induced iridocyclitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.21 – Lens-induced iridocyclitis, right eye
What it is
This code identifies inflammation of the iris and ciliary body in the right eye caused by a lens problem, such as lens material or lens-related irritation. Use it when documentation specifically links the iridocyclitis to the lens.
Clinical signs
Typical findings include eye pain, redness, light sensitivity, and blurred vision. Clinical features vary; refer to documentation for the right-eye diagnosis and the lens-induced cause.
When to use this code
Use H20.21 when the provider documents lens-induced iridocyclitis affecting the right eye. It may appear in notes describing inflammation after lens-related pathology or lens material exposure. Code it only when the right eye and lens cause are both specified.
Do not use for
Do not use this code for iridocyclitis without a lens-related cause, or when the affected eye is not the right eye. Check documentation if the laterality or etiology is unclear.
Coding tip
Verify both laterality and the lens-induced cause before assigning H20.21.