Explosion on board merchant ship, subsequent encounter

This code signifies a patient presenting for follow-up care or sequelae stemming from an injury sustained during an explosion that occurred on a merchant ship. It indicates that the initial injury event has already been documented, and the current visit addresses ongoing treatment, complications, or recovery related to that specific incident.

This code is appropriate for subsequent visits where a patient is receiving ongoing medical attention for injuries like burns, blast trauma, fractures, or psychological distress directly resulting from an explosion on a merchant vessel. Examples include physical therapy for blast injuries, wound care for burns, or mental health counseling for PTSD after the initial emergency treatment.

• Always pair this code with an external cause code (X-code) detailing the specific type of injury sustained.
• Ensure documentation clearly states the encounter is for follow-up care related to the initial explosion event.
• Verify the "D" seventh character is appropriate for subsequent encounters, not initial or sequela.