Retained (old) fb in posterior wall of globe, left eye

This code signifies the presence of a non-magnetic, old foreign body lodged in the posterior wall of the left eye. This foreign object is not recent and does not respond to magnetic extraction, indicating it has been present for some time. It specifically refers to an object embedded within the sclera or choroid at the back of the globe.

Use this code when documentation confirms a foreign body in the posterior segment of the left eye that is explicitly described as non-magnetic and old or chronic. This typically applies to cases where the foreign body has been present for an extended period, often discovered incidentally or during evaluation for chronic ocular symptoms. Documentation should specify the laterality (left eye) and the non-magnetic, old nature of the foreign body.

• Ensure documentation clearly distinguishes between "old" and "current" foreign bodies; acute foreign bodies would use different codes.
• Verify the foreign body is explicitly stated as non-magnetic; magnetic foreign bodies have distinct codes.
• Always confirm laterality (left eye) as there are separate codes for the right eye and bilateral involvement.