Theerthesh,
Yes, you can renumber the access no. This is just like serial no.
The entry with no. 11, make it 15; the condition table no. will remain the same.
The new table which you want to put in between, number it 13.
By this you will have 3 entries with access no. 10, 13 and 15. In future if you want to add more tables in between, you can.
TW