Those figures would be for the Service Personnel & Veterans Agency as part of the MOD, as an agency providing those services. They also provide pension services and advice to veterans. I can only guess that this is where that expenditure comes from.
Veterans and veterans' health are provided for within the NHS services more generally. I have a specific budget for the programs that I have been running here, of approximately £8 million for mental health and approximately £15 million for physical health, prosthetics, and other care.
The SPVA is a separate agency within the MOD, so the numbers that you quote are absolutely right. But this would include the pensions arm of the agency, as well as all the requirements around compensation, etc.