Can I replace outside unit R22 with r410 without changing the inside evaporotor coil?

Can I replace outside unit R22 with r410 without changing the inside evaporotor coil

QUOTE=oonnunny;2536574]We have an old unit with R22. Would like to change the R22 with R410, only the outside unit. Do we have to replace the whole inside evaporator coil

Replace both the inside and outside units along with a new line set that connects them together. There are many different reasons for this so if you really need to know the reasons look around on this board and on the net. Pressure differential,different oil types are just two of the items. Larger indoor coil size is another.