Am looking for a specific horror movie from only small detail?

When I was younger I had watched this scary horror movie that was set in either an institution of some kind – e.g. a hospital or orphanage. The reason I think this is because I seem to recall loads of beds. I believe it was set in a hospital and that the ghosts were those of people who had died in the hospital. I also think the protagonist was a child.

I cannot remember much else of it except that the movie was definitely released before 2004 (probably earlier 2001). Any help will be greatful as I have been looking for what this movie was for ages. We had it recorded on video I believe, but must have misplaced it or rerecorded.

Ta.