If I understand that correctly, it's to apply to any kind of termination of pregnancy, spontaneous or induced, that is not attended by a medical professional. So if you're pregnant and have a miscarriage and were 1) planning an unassisted pregnancy or 2) are seeing a midwife and they are not legal in your state, you either HAVE to see a medpro, or you have to report yourself to the cops and show them the remains.

I have no idea why someone thinks this is useful. I am RELATIVELY certain it is supposed to mean stillbirth, in states where third-trimester abortions are illegal, so that they can ascertain you didn't cause one yourself.