ICD-10 Code H44.329 – Siderosis of eye, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.329 – Siderosis of eye, unspecified eye
What it is
Siderosis of the eye is iron deposition in ocular tissues after a retained iron-containing foreign body. Unspecified eye means the chart does not identify the right or left eye.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include ocular inflammation, iris discoloration, cataract, retinal changes, or reduced vision after a penetrating metallic injury.
When to use this code
Use H44.329 when the clinician documents siderosis in an unspecified eye and the affected side is not stated. It fits cases with a history of retained iron foreign body or related ocular damage. Check documentation if the record only mentions a metallic foreign body without siderosis.
Do not use for
Do not use this code for a foreign body in the eye without documented siderosis. If the affected eye is specified, use the appropriate laterality code instead.
Coding tip
Always confirm both the diagnosis and laterality in the note before assigning H44.329.