ICD-10 Code H21.03 – Hyphema, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H21.03 – Hyphema, bilateral
What it is
H21.03 identifies hyphema in both eyes, meaning blood is present in the anterior chamber of each eye. Use it when documentation clearly states bilateral hyphema.
Clinical signs
Typical findings include visible blood layering or haze in the anterior chamber, eye pain, photophobia, and reduced vision. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents hyphema affecting both eyes, whether from trauma or another documented cause. It may also apply when bilateral anterior chamber bleeding is confirmed on exam or imaging. If laterality is not clearly bilateral, check documentation.
Do not use for
Do not use this code for unilateral hyphema or for other anterior chamber disorders without bleeding. If the record only says eye injury or ocular hemorrhage without hyphema, check documentation.
Coding tip
Confirm bilateral laterality in the assessment or exam note before assigning H21.03.