Argentous corneal deposits, bilateral

This code describes the presence of silver-containing deposits within the cornea of both eyes. These deposits typically appear as a grayish or brownish discoloration and are often a result of systemic silver exposure (argyria) or topical silver-containing medications. The condition can affect visual acuity depending on the density and location of the deposits.

Use this code when documentation explicitly states bilateral argentous corneal deposits. This typically occurs in patients with a history of chronic silver exposure, either through occupational contact, ingestion of silver-containing supplements, or prolonged use of silver-containing ophthalmic preparations. The diagnosis should be confirmed by an ophthalmologist.

• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Distinguish from other corneal opacities or degenerations; the etiology of silver deposition must be clear.
• Consider coding an external cause code if the silver exposure is due to an identifiable environmental or occupational factor.