Interstate highway as place

This code indicates that an external cause of injury or poisoning occurred on an interstate highway. It specifies the physical location where the event leading to the patient's condition took place, rather than the nature of the injury itself.

Apply this code when documentation clearly states that an incident, such as a motor vehicle accident, fall, or assault, happened on an interstate highway. This is typically used as a secondary code to provide context for an external cause code (V00-Y38).

• Always sequence this as a secondary code following an external cause code.
• Ensure documentation explicitly mentions "interstate highway" or a similar designation for this specific code.
• Distinguish from other highway types (e.g., state highway, local road) which have different Y92 codes.