April 2026 ICB merges introduced

ICB merges introduced 1st April 2026

Yesterday, the new ICB structure came into effect.

A combination of mergers and clusters means the environment now looks something like the image below.

How do your sales structures marry up to these? Now is a great time to review and realign, to ensure your territories are fit for the future NHS. 

Map created using CSL's Map My Territory software

To save you time if your territories have been recently aligned, the tables below outline the ICB updates taking place. 

ICBs affected that will no longer exist

NHSE region codeCurrent ICB codeCurrent ICB name
Y61QHGNHS Bedfordshire, Luton and Milton Keynes ICB
Y61QUENHS Cambridgeshire and Peterborough ICB
Y61QM7NHS Hertfordshire and West Essex ICB
Y61QH8NHS Mid and South Essex ICB
Y61QJGNHS Suffolk and North East Essex ICB
Y61QMMNHS Norfolk and Waveney ICB
Y56QMJNHS North Central London ICB
Y56QRVNHS North West London ICB
Y59QU9NHS Buckinghamshire, Oxfordshire and Berkshire West ICB
Y59QNQNHS Frimley ICB
Y59QXUNHS Surrey Heartlands ICB
Y59QNXNHS Sussex ICB

New ICBs that will be introduced

NHSE region codeNew ICB codeNew ICB name
Y61S1Y5DNHS Central East Integrated Care Board
Y61D7T5GNHS Essex Integrated Care Board
Y61T6Y0WNHS Norfolk and Suffolk Integrated Care Board
Y56Z9B2ZNHS West and North London Integrated Care Board
Y59S0E4DNHS Thames Valley Integrated Care Board
Y59S9B9JNHS Surrey and Sussex Integrated Care Board

Short on time and resource? Let CSL review your territory structures and recommend realignments if needed, under our Territory Mapping service. 

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