Assault by knife, subsequent encounter

This code signifies an injury sustained from an assault involving a knife, specifically when the patient is receiving follow-up care for the initial injury. It indicates that the patient is in the healing phase or receiving ongoing treatment for complications related to the initial assault.

Apply this code when a patient presents for a subsequent visit, such as wound care, physical therapy, or medication management, following an assault by a knife. This includes scenarios where the initial injury has been treated, and the patient is returning for continued medical attention.

• Ensure documentation clearly indicates a "subsequent encounter" for the knife assault injury.
• Always code the specific nature of the injury (e.g., stab wound to abdomen) first, followed by this external cause code.
• Verify that the encounter is not for the initial treatment of the injury, which would require an "initial encounter" character.