Smith played a limited role in the Lions series, coming off in the first test with what was initially suspected to be concussion symptoms.
This was later re-diagnosed as an inner ear infection, which saw him miss the second and third tests and sit out the Highlanders win over the Reds in Dunedin on Friday.
Smith will return for the quarter-finals showdown with the Crusaders in Christchurch this week.
While he is widely considered the world's best fullback, the All Blacks have no shortage of options to temporarily cover his absence.
Hurricanes utility Jordie Barrett will be the favourite to enjoy an extended run at fullback after starring there in his starting debut in the third Lions test at Eden Park.
Barrett proved his versatility by easily slotting in at centre in the Hurricanes victory over the Crusaders on Saturday night in Wellington but he has made a home at fullback this year. His goal kicking is another valuable asset.
Chiefs utility Damian McKenzie is likely to come back into contention after initially missing out on the All Blacks squad to face the Lions.
Crusaders fullback Israel Dagg has predominately been used on the wing by the All Blacks.
Nehe Milner-Skudder may also force his way back after recently returning from injury.
Smith may not be the only leading All Black to be rested from certain tests this year.
The All Blacks will take a 37-man squad on their end of season tour but have already been open about monitoring workloads and potentially resting some players from the taxing Argentina and South Africa away leg of the Rugby Championship.