Fel rhan o'r ymyrraeth a’r cymorth wedi'u targedu a roddir i Fwrdd Iechyd Hywel Dda, dan Drefniadau Uwchgyfeirio ac Ymyrryd GIG Cymru, cafodd adolygiad cwbl gynhwysfawr o gostau ychwanegol posibl sy'n codi o batrwm presennol gwasanaethau gofal iechyd Bwrdd Iechyd Prifysgol Hywel Dda ei gomisiynu gan arbenigwyr allanol annibynnol.
As part of the Targeted Intervention support provided to Hywel Dda Health Board, under NHS Wales Escalation and Intervention Arrangements, a zero based review of potential excess costs arising from the current configuration of Hywel Dda UHB healthcare services was commissioned from independent external experts.