Milt op involving explosn of marine weapons, civilian, subs

This code signifies an injury or health condition sustained by a civilian due to an explosion involving marine weapons other than torpedoes or depth charges, occurring during military operations. It specifically indicates that this is not the initial treatment for the injury, but rather a follow-up visit for ongoing care, complications, or recovery.

Use this code for subsequent encounters when a civilian patient presents for treatment related to injuries from an explosion of a marine weapon (e.g., a mine, unexploded ordnance) during military operations. This would include follow-up appointments for wound care, physical therapy, psychological counseling, or management of long-term sequelae.

• Ensure the patient is explicitly documented as a civilian and the incident involved military operations and marine weapons.
• Confirm the encounter is for follow-up care, not the initial treatment, by checking the encounter type and documentation.
• Always code the specific injury or condition resulting from the explosion first, followed by this external cause code.