Exposure to flames in controlled fire in bldg, subs

This code signifies that a patient experienced an injury or adverse health effect due to contact with flames within a controlled fire environment inside a building, and this is not the initial visit for that condition. A controlled fire implies an intentional and managed burn, such as a fireplace, bonfire, or industrial furnace, where the flames were contained but still caused harm.

Use this code for follow-up encounters, such as wound care, physical therapy, or re-evaluation of burns, stemming from an incident where the patient was exposed to flames from a contained fire within a structure. This applies when the initial injury occurred in a setting like a fireplace accident, a controlled burn in a laboratory, or an industrial setting with managed flames.

• Ensure the documentation clearly specifies a "subsequent encounter" for the injury.
• Verify that the fire was explicitly described as "controlled" and occurred within a "building or structure."
• Always code the specific nature of the injury (e.g., burn, smoke inhalation) first, followed by this external cause code.