Version: 1.0.3 | Published: 1 Dec 2025 | Updated: 3 days ago

Cancer Outcomes and Services Data Set

Dataset

Summary

Type:
  • Collections
  • Information standards
Effective From:
11 September 2023
Applies To:
  • Cancer centres and Cancer units
  • Electronic systems\u0027 purchasers (systems used in NHS commissioned cancer centres)
  • Electronic systems\u0027 purchasers (systems used in NHS provider services)
Impacts On:
Implementation of this information standard impacts all health IT systems suppliers providing systems to the above providers; suppliers should work with their customers to determine necessary changes. Users of secondary data about cancer will need to review their current use and determine appropriate changes.
Conformance Date:
01 July 2024
Topics:
  • Data definitions and terminologies
  • Reference data
Care Settings:
  • Hospital
  • Urgent and Emergency Care

Documentation

Description:

The Cancer Outcomes and Services Data Set (COSD) is a compiled data set, which provides the standard for secondary uses information required to support national cancer registration and associated analysis (at local, regional, national, and international level), as well as other national cancer audit programmes.

COSD v10.0 defines the data, excluding pathology, which cancer services teams need to collect.

COSD Pathology v5.0 is supplied by services directly by their pathology departments.

COSD provides the standard for secondary uses and consists of:

  • a set of individual data items, with their definitions
  • the assemblage of these data items into tumour specific discrete data sets
  • the means of flowing the data items
  • compilation of the data items into two reconciled data sets
    • Patient Pathway
    • Pathology
The data sets relate to all cancer patients, both adult and paediatric, in acute inpatient and outpatient settings, but does not include private patients or primary care.

Relations:
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Dependencies:
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