Accidental malfunction of machine gun, subsequent encounter

This code signifies an injury or adverse health effect resulting from the unintended discharge or operational failure of a machine gun, specifically during a subsequent encounter for care. This implies the patient is receiving follow-up treatment for an injury sustained in a prior incident involving a machine gun malfunction.

Apply this code when a patient presents for ongoing management, rehabilitation, or further evaluation of an injury previously sustained due to an accidental machine gun malfunction. This includes scenarios like wound care, physical therapy, or surgical follow-up related to the initial incident.

• Always ensure the encounter is explicitly documented as "subsequent" for this code to be appropriate.
• Pair this external cause code with an injury code (e.g., a fracture, open wound) to fully describe the patient's condition.
• Verify that the mechanism of injury specifically involves a machine gun and not another type of firearm.