This file is a lookup between Output Areas (2021), Sub Integrated Care Board Locations, Integrated Care Boards and NHS England (Region), 2024 in England. (File size - 26MB). Field Names - OA21CD, SICBL24CD, SICBL24CDH, SICBL24NM, ICB24CD, ICB24CDH, ICB24NM, NHSER24CD, NHSER24CDH, NHSER24NMField Types - Text, Text, Text, Text, Text, Text, Text, Text, Text, TextField Lengths - 9, 9, 3, 65, 9, 3, 77, 9, 3, 24Codes corrected for East of England and North West following boundary change in 2022. Boundaries not affected.