ICD-10 Code H20.13 – Chronic iridocyclitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.13 – Chronic iridocyclitis, bilateral
What it is
H20.13 identifies long-lasting inflammation of the iris and ciliary body in both eyes. Use it when the record specifically documents chronic iridocyclitis affecting both sides.
Clinical signs
Typical findings include persistent ocular inflammation, eye redness, pain, photophobia, and blurred vision. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents chronic iridocyclitis and clearly states that both eyes are involved. It also fits follow-up notes that continue to describe the bilateral condition without changing the diagnosis. Check documentation if laterality is unclear.
Do not use for
Do not use H20.13 for acute iridocyclitis, unspecified iritis, or inflammation limited to one eye. If the chart does not confirm chronicity and bilateral involvement, code more specifically or check documentation.
Coding tip
Confirm both chronicity and laterality in the assessment before assigning H20.13.