Military activity

This code indicates that an injury or adverse event occurred during active military duty, directly related to the individual's service. It signifies that the patient was engaged in official military operations, training, or other service-related activities at the time of the incident.

Use this code when documenting an injury sustained by active military personnel while performing their official duties, such as during combat, training exercises, or while on base for service-related tasks. It applies to incidents directly resulting from military operations or activities.

• Always assign this code as a secondary external cause code to provide context for the injury.
• Distinguish carefully from Y99.8, which is used for off-duty military personnel activities.
• Ensure documentation clearly states the patient was on active duty and the activity was service-related.