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Cancer Outcomes and Services Data set

About this information standard

The Cancer Outcomes and Services Data set (COSD) provides the standard for secondary uses information required to support implementation and monitoring of Improving Outcomes: a Strategy for Cancer (IOSC).

Version 8.0 introduces a number of changes, detailed in the Change Specification below. These changes should be implemented by 1 April 2018, with full conformance required by 1 July 2018.

This information standard is published under section 250 of the Health and Social Care Act 2012. An Information Standards Notice (see below) provides an overview of scope and implementation timescales, and the other listed documents provide further detail for those who have to implement the information standard.

UPDATE 27 October 2017: The current release (DCB1521 Amd 74/2016) was published on 28 September 2017.  Since then the need for a minor correction to the Data Set has been identified. A summary of it is provided in the Corrigendum, available below.

The corrigendum will be incorporated in the next release of this information standard.

Current Release

Version 8.0

Release date28/09/2017
Release numberAmd 74/2016
Release titleVersion 8.0
Key documents
Supporting documents
Further information 

More information can be found at PHE: National Cancer Intelligence Network (external link)

or please contact the COSD Help Desk -

Previous Releases

Version 7.0

Release date17/08/2016
Release numberAmd 1/2016
Release titleVersion 7.0
Key documents
Supporting documents

Version 6.0

Release date19/02/2015
Release numberAmd 17/2014
Release titleVersion 6.0
Key documents
Supporting documents
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