Q.

It is a 9 letter word- 123456789;
If u lose it,  you die;
If you have 234, you can 1234;
56 is one type of disease;
89 indicates exact location & time;
2 & 7 are same letter,

3 & 8 are same letter,

5 & 9 are same letter.
Guess the word!?

Challenge for all masterminds!!