The 2021 US OPEN champion plans to conduct a two -week training bloc and will not play any WTA tournaments.
It is not clear when you plan to return to matching the work.
Radokano's withdrawal means that British Captain Ann Kyoghawong evaluates her options, but it is likely to call another player in a team of five women.
Katie Polater, Sonai Kartal, Harright Dart and Olivia Nicole were initially alongside Radocano to coordinate the new round of Sportcampus ZuiderPark in The Hague between April 10-12.
Great Britain faces the Netherlands and Germany, with the supreme nation of the week closing a place in the finals later this year.
The other two teams will meet in the separate matches for a chance to return to the qualifiers in 2026.