ICD-10 Code H44.312 – Chalcosis, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.312 – Chalcosis, left eye
What it is
H44.312 identifies chalcosis affecting the left eye. It means copper-containing material has been retained in the eye, causing a toxic ocular condition.
Clinical signs
Findings may include ocular discoloration, inflammation, or visual disturbance. Clinical features vary; refer to documentation for the documented left-eye involvement and confirmed chalcosis.
When to use this code
Use H44.312 when the provider documents chalcosis in the left eye, such as after a retained intraocular copper foreign body. It is appropriate when the diagnosis is clearly stated and laterality is specified. Check documentation if the note only mentions a foreign body without chalcosis.
Do not use for
Do not use this code for chalcosis of the right eye, both eyes, or unspecified eye. Also avoid it when the record documents another metallic ocular condition without chalcosis.
Coding tip
Verify both the diagnosis and laterality in the ophthalmology note before assigning H44.312.