Drown due to merchant ship overturning, sequela

This code signifies the long-term health consequences or complications arising from a drowning or near-drowning incident that occurred due to a merchant ship capsizing. These sequelae can include chronic respiratory issues, neurological damage, psychological disorders, or other persistent conditions directly attributable to the original event.

Use this code when documenting a patient presenting with a current condition that is a direct result of a drowning or submersion incident caused by a merchant ship overturning in the past. This applies to follow-up care for chronic conditions or delayed onset symptoms stemming from the original maritime accident.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic anoxic encephalopathy).
• Ensure documentation clearly links the current condition to the past drowning event and specifies the cause as a merchant ship overturning.
• Verify the "S" seventh character is appropriate for sequelae, indicating a late effect of the initial injury.