Dawn Sturgess,44, died in hospital in Salisbury, Wiltshire, in July 2018.
Baroness Heather Hallett has been appointed to hear the inquest after Lord Justice Bean and Mr Justice Lewis sitting in the Divisional Court, ordered the Wiltshire Senior Coroner, David Ridley, to reconsider its scope.
A pre-inquest review is due to be heard by Baroness Hallett at the Royal Courts of Justice on March 30.
Baroness Hallett was coroner for the inquests into the deaths of the 52 victims killed on 7 July 2005 in the bombings in London.
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