Final answer:
The correct external cause codes for a third-degree burn injury due to hot oil are X12.XXXA, Y92.511, Y93.G3, Y99.0.
Step-by-step explanation:
The question pertains to the correct assignment of external cause codes for a third-degree burn injury suffered by a fry cook due to spilling hot oil on his feet. The applicable external cause codes would include those that denote the cause of injury, the place where the injury occurred, the activity of the individual when the injury happened, and the employment status of the individual.
For third-degree burns caused by hot fluids like oil, the correct external cause code is X12.XXXA, which indicates contact with hot cooking oil. The code Y92.511 is for a diner as the place where the injury occurred. The code Y93.G3 represents the activity at the time of the injury, which is cooking. Lastly, the code Y99.0 applies since the individual was injured during paid employment.
Therefore, the correct option containing the applicable external cause codes for the fry cook's injury would be: A. X12.XXXA, Y92.511, Y93.G3, Y99.0.