ICD-10 Code H44.323 – Siderosis of eye, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.323 – Siderosis of eye, bilateral
What it is
Siderosis of the eye is iron deposition in ocular tissues, usually after a retained iron-containing foreign body. Bilateral means both eyes are affected, so you should document involvement in each eye when available.
Clinical signs
Clinical features may include iris discoloration, pupillary changes, cataract, retinal degeneration, or reduced vision. Clinical features vary; refer to documentation.
When to use this code
Use H44.323 when the provider documents siderosis affecting both eyes, even if the original foreign body is no longer present. This code fits confirmed ocular iron deposition with bilateral involvement. If the record only says “siderosis” without laterality, check documentation.
Do not use for
Do not use this code for non-iron foreign bodies, superficial eye injuries, or unilateral siderosis. If the note describes another retained intraocular foreign body complication, code that condition instead.
Coding tip
Verify both laterality and the presence of iron-related ocular damage before assigning H44.323.