Ah, but there's a definition! And I think Mary might get "upgraded" to Serious for the final report.
Here's the definition of serious injuries, from 49 CFR 830.2: "Serious injury means any injury which: (1) Requires hospitalization for more than 48 hours, commencing within 7 days from the date of the injury was received; (2) results in a fracture of any bone (except simple fractures of fingers, toes, or nose); (3) causes severe hemorrhages, nerve, muscle, or tendon damage; (4) involves any internal organ; or (5) involves second- or third-degree burns, or any burns affecting more than 5 percent of the body surface."
If the person dies within 30 days of the accident, it's "Fatal" - If they survive for 30 days and then die, they're "Serious" even though they ended up dying. If they're alive, the above definition applies for whether it's "Serious" and if it doesn't meet the above, then it's "Minor" or none.
