Some rhinoplasty is cosmetic, some is to repair issues such as a deviated septum.
I had a surgical procedure to correct a deviated septum. The procedure was called septoplasty, not rhinoplasty. But I’m not an expert on medical terminology; maybe the terms are used interchangeably.
In the context of this topic, I suppose that a deviated septum would fall into the category of items that warrant discosure.