Foreign body accidentally entering eye and adnexa

This code signifies the accidental entry of an external object into the eye or its surrounding structures (eyelids, lacrimal apparatus, orbit). This includes situations where a foreign body, such as dust, sand, or a small insect, inadvertently makes contact with and lodges in or on the ocular surface or adnexa. It describes the mechanism of injury rather than the resulting damage.

Apply this code when documentation clearly indicates an accidental foreign body entry into the eye or adnexa, without intent or assault. This is typically used as an external cause code (E-code) to describe the circumstances surrounding an injury. Supporting documentation would include patient history detailing the accidental nature of the event and the type of foreign body.

• Always sequence this E-code after the primary diagnosis code describing the actual injury or condition caused by the foreign body (e.g., corneal abrasion, conjunctivitis).
• Do not use this code for foreign bodies intentionally introduced or resulting from assault; refer to other E-codes for those scenarios.
• Ensure documentation specifies "accidental" entry; otherwise, consider E91.5 (Foreign body entering orifice other than eye, ear, nose, or mouth) if the entry was not accidental.