Exposure to smoke in uncontrolled fire, not in bldg, subs

This code indicates that a patient has experienced exposure to smoke from an uncontrolled fire that occurred outdoors, rather than within a building or other constructed enclosure. The "D" seventh character signifies that this is a subsequent encounter, meaning the patient is receiving follow-up care for conditions or injuries related to this initial smoke exposure.

Assign this code when a patient presents for follow-up treatment of respiratory issues (e.g., bronchitis, asthma exacerbation), eye irritation, or other health problems stemming from smoke inhalation from an outdoor fire. This could include exposure to wildfires, brush fires, or large outdoor bonfires. It is appropriate for any visit after the initial assessment and treatment.

• Ensure the documentation clearly states the fire was outdoors and not contained within a structure.
• Confirm this is a subsequent visit for ongoing care related to the smoke exposure, not the initial presentation.
• Always code any specific conditions or injuries resulting from the smoke exposure (e.g., acute bronchitis, conjunctivitis) in addition to this external cause code.