Santner had initially been ruled out of the recently-completed one-off Test Ireland and first of three Tests against England after suffering grade three ACL shoulder injury while playing for Mumbai Indians in the IPL.
The 34-year-old left-arm spinner has now though been declared fit and has linked up with his New Zealand teammates in London to prepare for the series against England.
Santner will replace Dean Foxcroft in the squad, with the latter scoring 98 on Test debut as the Black Caps beat Ireland by an innings and 79 runs inside three days.
Fast bowler Matt Henry missed the Ireland Test with a low-grade hamstring strain, instead flying to London to prepare for the England series alongside fellow paceman Kyle Jamieson and Will O'Rourke.
The Kiwis will be coming up against an England side that has not played any Test cricket since falling to a 4-1 series defeat in the Ashes that concluded in January.
England have ushered in a new era for their Test side by recalling Ollie Robinson, dropping Zak Crawley and handing maiden call-ups to Emilio Gay, James Rew and Sonny Baker for next month's first Test against New Zealand at Lord's.
Kane Williamson will make his return to international cricket later this month after being named in New Zealand's squad for the one-off Test against Ireland and the series in England.
Nick Kelly has reflected on the 'massive honour' after unexpectedly captaining New Zealand to a 1-1 draw in the T20I series in Bangladesh.
New Zealand walked away with 1-1 draw in the three match T20I series in Bangladesh after chasing down a target 103 in a match reduced to 15 overs due to rain in Mirpur.
