I found this was a useful visual aid...
This is a useful table but beware of their interpretation of the scale when your loved one is assed.
My mum was reviewed last year and due to her condition we were granted continuous care for her nursing care, with a 6 month review. She passed away a week ago so she never had that review, but before she did I doubted its continuation as they kept saying how well she was doing.
Anyway the point is at the assessment meeting she was scored as low on the incontinence category despite being doubly incontinent, i was told that to score higher mum would need to be doing something like smearing her faeces over the Walls.
So please manage your expectations as their views on severity of your loved ones condition will vary greatly to yours.