If you are aged 30 to 85 you can obtain funeral insurance regardless of your current or previous health issues. No medical questions asked or check-up required.
Funeral Insurance is unlike life cover which usually needs to be assessed based on your current and previous health. So, with life cover some people will not qualify or will have heavy terms imposed. Pretty much if you want funeral insurance you can obtain it, you just need to meet the age entry points and any residency requirements. Some insurers may base premiums on your height / weight ratio but regardless the cover is still accepted if you are happy with the premium.