Heat exposure on board unspecified watercraft, sequela

This code signifies a lasting health problem or complication resulting from a past heat exposure incident that occurred on a watercraft. The specific type of watercraft is not detailed, and the sequela indicates that the acute phase of the heat exposure has passed, but its effects persist.

Apply this code when documenting a patient presenting with a chronic condition, symptom, or disability directly attributable to a prior heat exposure event that took place on any type of watercraft. This is used after the initial acute treatment for the heat exposure has concluded.

• Ensure documentation clearly links the current condition to a past heat exposure on a watercraft.
• Always code the specific sequela (e.g., chronic kidney disease, neurological damage) first, followed by this code.
• Verify that the encounter is for the sequela and not for the acute heat exposure itself.