Fall due to controlled fire, not in bldg, sequela

This code describes the long-term effects or complications arising from an injury sustained due to an uncontrolled or contained fire that occurred outdoors, not within a building. This could include burns, smoke inhalation injuries, or other trauma, where the initial acute injury has passed and the patient is now presenting for treatment of residual issues.

Apply this code when documenting conditions such as scar contractures from a burn, chronic respiratory issues from smoke inhalation, or nerve damage resulting from an injury caused by a controlled outdoor fire. The patient is no longer in the acute phase of the injury, but rather is being treated for the lasting consequences.

• Always assign an additional code for the specific sequela being treated (e.g., T21.31XS for third-degree burn of trunk, sequela).
• Ensure the documentation clearly indicates the injury occurred from a controlled fire outside of a building and that the encounter is for sequelae.
• Distinguish from uncontrolled wildfires (X00.-) or fires within structures (X01.-).