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Cancer Outcomes and Services Dataset (COSD)

 Now available on downloads page:

  • NEW! COSD Pathology documentation final versions   - minor amendments to previous version published in April
  • NEW! COSD Pathology mapping document - cross mapping between COSD v6.0 pathology items and the RCPath datasets
  • NEW! COSD Dataset v6.0 Basic format   - simplified version for reference
  • NEW! COSD v6.0 Errata   - Corrections to documentation. Latest update 30th June 2015

 What is the COSD?

The national standard for reporting cancer in the NHS in England since January 2013. Please see the Background to the COSD for more information. 

Documentation for the COSD Information Standard (SCII1521 Amd 17/2014) including the Specification, Change Notice and Implementation Guide is available on the HSCIC website. The latest version of the COSD Dataset and Schema, guidance and supporting documentation are available via the Downloads webpage.

COSD changes 2015

In order to ensure that the COSD remains up to date and fit for purpose we need to identify and submit changes on a regular basis, usually annually. The official notification for 2015 changes is now available on the HSCIC website, including the revised Specification and Implementation guide.  All other documentation can be downloaded from the Downloads page.  This now includes the final pathology specific schema to support structured XML submissions from January 2016.

Please note that there is one change to the dataset from the prepublication version. This is to reinstate UR15300 - STAGE GROUPING (TESTICULAR) in the Urology dataset as this was deleted in error.   

Submission Schedule

The schedule below gives the deadline for Providers to submit the COSD data for each calendar month of diagnosis/treatment. (PAS feeds have a later deadline)  Feedback reports for the data submitted are available through the NCRS COSD Conformance Monitoring Feedback Portal.  

Month of diagnosis/treatment Submission due date (MDT/Pathology)
November 2014 7th January 2015
December 2014 5th February 2015
January 2015 6th March 2015
Febuary 2015 7th April 2015
March 2015 8th May 2015
April 2015 8th June 2015
May 2015 3rd July 2015
June 2015 4th August 2015
July 2015 7th September 2015
August 2015 5th October 2015
September 2015 4th November 2015
October 2015 4th December 2015
November 2015 7th January 2016
December 2015 5th February 2016







A revised Conformance Framework has been published to align with v6.0. The Framework provides an outline of the conformance and quality checking reports which are provided following submission, processes for dealing with any problems in submission and the escalation process if these issues cannot be resolved locally. This document should be reviewed in conjunction with the Data Transfer Partnership Agreement which Providers have completed detailing key contacts and details of the data they submit to the NCRS. The  Conformance Framework is available from the the Downloads webpage.  

SNOMED CT Pilot Project

In support of the National Information Strategy, and following approval by the COSD Governance Board, the NCIN and Health & Social Care Information Centre are leading a project to pilot the use of SNOMED CT within COSD and to identify its potential benefits or issues. Consequently, five new data items, which will initially be for pilot project use only, have been added to the dataset and will provide alternative SNOMED CT coding options for "T" and "M" fields in pathology reports and additional SNOMED CT procedure codes to record treatments.

If you are interested in participating in this pilot, please contact us at the COSD Helpdesk (cosd at ncin dot link ).

Feedback and Queries

We welcome comments, queries and requests for further information through the COSD Helpdesk (cosd at ncin dot link ).