Retained (old) magnetic fb in posterior wall of globe, bi

This code signifies the presence of an old, magnetic foreign body lodged in the posterior wall of both eyes. This condition implies a chronic or long-standing foreign object that has penetrated the globe and is composed of magnetic material.

Use this code when documentation clearly indicates a magnetic foreign body has been retained in the posterior segment of both globes for an extended period. This typically follows a history of ocular trauma where the foreign body was not immediately removed, and subsequent imaging (e.g., MRI, CT scan) confirms its magnetic nature and bilateral posterior location.

• Ensure documentation specifies "magnetic" and "old" or "retained" to differentiate from acute or non-magnetic foreign bodies.
• Verify the foreign body is located in the "posterior wall of globe" and not another ocular structure.
• Confirm the condition is bilateral; if unilateral, a different code for the specific eye (right or left) should be used.