Retained (old) magnetic fb in iris or ciliary body, unsp eye

This code signifies the presence of a magnetic foreign body that has been lodged in the iris or ciliary body for an extended period, indicating it is not a recent injury. The foreign body's location is within the anterior segment of the eye, specifically affecting the structures responsible for controlling pupil size and producing aqueous humor. The "unspecified eye" designation means the medical record does not specify whether the right or left eye is affected.

Apply this code when documentation clearly indicates a chronic or old magnetic foreign body embedded in the iris or ciliary body, and the laterality (right or left eye) is not specified. This typically occurs after an initial injury where the foreign body was not immediately removed, or its presence was discovered later. Supporting documentation would include imaging reports (e.g., X-ray, MRI) confirming the magnetic nature and location, and physician notes describing the foreign body as "retained" or "old."

• Ensure the documentation specifies "magnetic" and "retained" or "old" to differentiate from acute foreign bodies.
• Avoid using this code if the laterality (right or left eye) is documented; instead, select the more specific code for the affected eye.
• Do not confuse with non-magnetic foreign bodies; separate codes exist for those.