The DSP is a payment for people with a longer-term illness. In order to be eligible, you need to be:
at least 16 yrs old and below the current pensionable age
have been an Australian resident for at least 10 yrs (with no break in residence for the last five yrs)
have a permanent medical condition that prevents you from working 15 hours or more per week within the next two years
under the income and assets test limits
you must have an impairment rating of at least 20 points, based on the Government published impairment tables