ICD-10 Code H20.049 – Secondary noninfectious iridocyclitis, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.049 – Secondary noninfectious iridocyclitis, unspecified eye
What it is
This code identifies inflammation of the iris and ciliary body that is secondary to another noninfectious cause, with the affected eye not specified. Use it when the record documents iridocyclitis but does not name the eye.
Clinical signs
Typical findings include eye pain, redness, photophobia, and blurred vision. Clinical features vary; refer to documentation for the underlying cause and whether the right, left, or bilateral eye is involved.
When to use this code
Use H20.049 when the provider documents secondary noninfectious iridocyclitis and does not identify the eye. It also fits when the inflammation is linked to a noninfectious condition or prior disorder, but laterality is missing or unspecified. Check documentation for the cause and eye.
Do not use for
Do not use this code for infectious uveitis or when the record specifies the right, left, or both eyes. If the note only says iritis or another uveitis type, verify the terminology before coding.
Coding tip
Confirm both secondary cause and laterality in the chart; if either is absent, code only what is documented.