Retained (old) foreign body following penetrating wound of orbit

This code signifies the presence of a foreign object, such as a metallic fragment, wood splinter, or glass shard, that remains lodged within the orbital cavity after an initial penetrating injury. The foreign body is considered "old" or "retained" because it was not immediately removed at the time of the original trauma. This can lead to chronic inflammation, infection, or visual impairment.

Use this code when documentation clearly indicates a foreign body is still present in the orbit following a penetrating wound, and the injury is no longer acute. This typically applies to patients presenting with symptoms related to the retained object weeks, months, or even years after the initial trauma. Supporting documentation includes imaging reports (e.g., CT, MRI) confirming the foreign body's presence and location, and physician notes detailing the history of a penetrating orbital injury.

• Ensure documentation specifies the foreign body is "retained" or "old" and not an acute foreign body.
• Do not use for acute foreign bodies of the orbit; those would typically be coded with an acute injury code.
• Consider sequencing this code after any codes for current complications directly resulting from the retained foreign body (e.g., orbital cellulitis, vision loss).