Exhaustion due to exposure, initial encounter

This code signifies a state of physical and mental fatigue resulting from prolonged or intense exposure to environmental factors, such as extreme heat, cold, or strenuous physical activity. It represents a non-specific type of exhaustion, distinct from heatstroke or hypothermia, where the body's compensatory mechanisms are overwhelmed.

Apply this code for patients presenting with symptoms like profound tiredness, weakness, and malaise directly attributable to environmental exposure. This is appropriate for the initial assessment and treatment of such conditions, before a more specific diagnosis like heat exhaustion or hypothermia is established or if the exhaustion is not clearly linked to a specific temperature extreme.

• Ensure documentation clearly links the exhaustion to an environmental exposure.
• Do not use if a more specific diagnosis, such as heat exhaustion (T67.0-) or hypothermia (T68), is documented.
• The "A" in the seventh character indicates an initial encounter for this condition.