Broadening the discussion a little, I think it worth mentioning that in England, all deaths that occur in hospital are now referred to the Medical Examiner's office where the cause (or causes) of death is reviewed and discussed with the next of kin before the release documentation is forwarded electronically to the Registrar.
This can add significant delays to the family's ability to register the death and hence, book a firm date for a funeral service or sign the paperwork for a direct cremation.
My husband died in June, this year, in hospital. The Medical Examiner's office could not agree with the ward doctors whether a small subdural haematoma found on CT after admission had been a contributory factor in his death. I was informed that more discussion would be needed with the consultant before the cause of death and any contributing conditions could be finalised and recorded.
Then I was told that my husband's file was being passed to the Coroner's office for their involvement because subdural haematoma is most usually caused by a blow to the head or as a result of a fall, though can occur spontaneously especially in the elderly or those with brain shrinkage. No post mortem was being instigated as they had access to CT scanning and his case had also been discussed with specialists at the neurological centre of excellence at another hospital shortly after his scan.
But the Coroner was having problems getting hold of the consultant, so this led to further delays. At one point, I was asked to give a verbal account of how my husband had been in the days leading up to his fall, when an ambulance crew had attended but not hospitalised him, and how he had been prior to his admission to hospital, two days later.
Eventually, it was decided that the subdural haematoma would not have contributed significantly to his death from other causes and the causes of death section of the forms could be finalised and relayed to me, as next of kin.
It was 16 days from date of death to my being given permission to book an appointment with the Registrar's office. As it was a Friday, I could not get an appointment until the following Monday, which was 19 days after my husband's death. It was 27 days until the direct cremation took place - so nearly 4 weeks between date of death and cremation.
So if you are the person making arrangements don't assume that you will necessarily be able to register the death within a couple of days and then book a firm date for the funeral because this requirement for all hospital deaths to be reviewed by the Medical Examiner may result in unanticipated delays.