I think it is a terrible term to use for a child who is unable to attend school and is an excuse for schools, LEA's the government to blame mental health problems / anxiety problems in school on the child.
I have first hand experience of this and had a child who was classed a school 'refuser' as a result of the fact that he had massive anxiety/ undiagnosed ASD and was unable to attend for a period of 6 months last year. Rather than give him support, in the first instance, when he started to get anxious and not want to go he was branded as naughty and defiant and quite ridiculously threatened with exclusion because he was scared to go into the class room. His anxiety wasn't addressed and he started to threaten to self harm and was eventually deemed until to go to school by mental health workers.
Happily now we have got to the root of the anxieties and have a good new school he has gone back but needs a number of interventions in the classroom/ school environment to cope. If he had had these and school had listened in the first place he may never have had to have time off, sigh!
I've read on a post today some quite judgemental comments about 'school refusal' and think the term itself is so damaging as the implication is that it is the child or the parents fault.
Just really winds me up, that's all.