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

This code signifies the presence of an old, magnetic foreign body embedded in the iris or ciliary body of both eyes. This typically refers to a foreign object that has been present for an extended period, rather than a recent injury. The magnetic nature of the foreign body is a key characteristic.

Use this code when documentation clearly indicates a long-standing, magnetic foreign body located in the iris or ciliary body affecting both eyes. This would typically be identified through ophthalmic examination and imaging (e.g., X-ray, MRI if non-magnetic, or specific foreign body localization techniques). The "old" designation implies the foreign body is not from an acute, recent trauma.

• Ensure documentation specifies "magnetic" and "old" (or chronic) to differentiate from acute or non-magnetic foreign bodies.
• Verify laterality; this code is specifically for bilateral involvement. If only one eye is affected, a unilateral code should be used.
• Consider sequencing with codes for any associated complications, such as inflammation, glaucoma, or vision impairment, with the foreign body code typically being primary if it is the primary reason for the encounter.