Patient codes for Fire In Hospital

I got a fire in a hospital call today and my patient's codes were 29-D-4 which is in the 29 section (Traffic/Transportation incidents). 29-D-4 is for a pinned patient.
I'm pretty sure if it's a fire, the patients will have burns (section 7 - Burns (scalds)/Explosion (blast). In my eyes, I I believe since there are 20 patients, it should've been 7-D-2 for multiple victims of the good ole 7-C-1 for structure fire with persons inside.
Obviously not a major bug, however I would just like to put it out there.
Thank you!