noun, noun or participle which takes 'suru', intransitive verb
rehospitalization; readmission to hospital
Used for being admitted to a hospital again, often after a previous discharge. Can refer to the event or the state.
退院後すぐに再入院することになった。
I ended up being readmitted to the hospital right after being discharged.
再入院の原因は合併
The cause of the rehospitalization was a complication.