ICD-10 Code H20.053 – Hypopyon, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.053 – Hypopyon, bilateral
What it is
Hypopyon means visible pus or inflammatory material layering in the front chamber of the eye. Bilateral means it is present in both eyes.
Clinical signs
You may see a white or yellow fluid level in the anterior chamber, often with eye redness, pain, photophobia, or blurred vision. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents hypopyon in both eyes. It fits charted findings from exam, ophthalmology consultation, or confirmed bilateral anterior chamber inflammation. Check documentation if the record does not clearly state laterality.
Do not use for
Do not use it for unilateral hypopyon or for nonspecific eye redness without documented hypopyon. Do not assume the diagnosis from symptoms alone; check documentation.
Coding tip
Verify that the note explicitly states bilateral involvement before assigning H20.053.