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NDRS Breast Screening After Radiotherapy Dataset

The NDRS Breast Screening After Radiotherapy Dataset (BARD) is a confidential database of women in England who have received radiotherapy involving breast tissue when aged between 10 to 35 years. BARD helps to optimise screening for women who may be at higher risk of developing a second primary cancer.

Page contents

Data set versions as presented in the DARS online system

NDRS Breast screening After Radiotherapy Dataset (BARD)

Access method

Data set available in packages

Packages are pre-defined groups of fields and or tables that allow a customer to select from a list that best meets their needs. Packages do not allow a customer to customise their field or table selection.

  • Yes

Period of data coverage

1 January 2003 to approximately 3 years behind present day (that is, for the calendar year starting January 2026, inclusions in BARD are only complete up to the end of 2023. In January 2027, following the annual update to the NDRS Cancer Registrations data set, inclusions will become complete up to the end of 2024. This cycle will repeat annually).

Geographical scope of data

England

Linkable to other data sets

  • Yes

Data collection process

Submitted by: NHS funded secondary care providers

Collected by: National Disease Registration Service 

Frequency: Quarterly

Clinical coding systems

Does the data set include any standardised systems of coding?

  • ICD10 (International Classification of Diseases classifies diseases and other health conditions.)
Full list of coding systems considered

SNOMED-CT (a structured clinical vocabulary for use in electronic health records.)

ICD  (International Classification of Diseases classifies diseases and other health conditions.)

OPCS-4  (Office of Population Census and Surveys classification of interventions and surgical procedures)

dm+d  (Dictionary of descriptions and codes which represent medicines and devices in use across the NHS.)

NICIP (National Interim Clinical Imaging Procedure provides consistent recording of imaging procedures.)

UCUM  (Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measurement.)

TFCs (Treatment Function Codes are used to record treatment activities undertaken)

Read Code v2  (A coded thesaurus of clinical terms.)

Read Code Clinical Terms v3 (A coded thesaurus of clinical terms.)

UICC (Union for International Cancer Control classification of cancer by anatomic disease extent.)

IMD  (Indices of Multiple Deprivation measures relative poverty.)

Derived fields

Standardised formulation may be applied across multiple data sets to generate commonly derived fields. Any standard derivations applicable to this data set are listed below. Please note that this does not include bespoke derivations created specifically for the individual data set.

  • None
Full list of standard derivations considered

GP_PRACTICE_CODE_TRACED (The GP practice that the patient is registered at, as found when traced against the Person Demographic Service (PDS).)

CCG_OF_RESIDENCE (Clinical Commissioning Group covering the area in which the patient’s postcode falls where data relates to pre 1 July 2022. Otherwise ICB Sub Location.)

ICS_OF_RESIDENCE (The Integrated Care System covering the area in which the patient’s postcode falls. This will be null for any data relating to earlier than 1 July 2022.)

LA_OF_RESIDENCE (The Local Authority covering the area in which the patient’s postcode falls.)

LSOA_OF_RESIDENCE (The Lower Super Output Area (lowest level without being disclosive) covering the area in which the patient’s postcode falls.)

CCG_OF_REGISTRATION (Clinical Commissioning Group which has a commissioning relationship with the GP practice which the patient is registered at where data relates to pre 1 July 2022. Otherwise ICB Sub Location.)

ICS_OF_REGISTRATION (The Integrated Care System covering the area in which the patient’s GP practice falls. This will be null until for any data relating to earlier than 1 July 2022.)

LA_OF_REGISTRATION (The Local Authority covering the area in which the patient’s GP practice falls.)

LSOA_OF_REGISTRATION (The Lower Super Output Area (lowest level without being disclosive) covering the area in which the patient’s GP practice falls.)

Third party licensing

Does the data set require copyrighted clinical assessment tools or outcome measures that require a licence?

  • No

Advice and support

Governance of this data set is provided by:

  • Owning organisation - Department of Health and Social Care
  • Data Controller - NHS England
  • Data Processor - NHS England

NHS England provides a variety of functions for the data sets we make available. Therefore, our knowledge and understanding of the data will vary, impacting the level of advice and support we can provide.

In relation to this data set, we undertake end to end management and can therefore provide a full advice, guidance and support service to users.

Supporting documentation and guidance

ARTICLE

Breast screening After Radiotherapy Dataset (BARD)

The Breast screening After Radiotherapy Dataset (BARD)  helps to optimise screening for women who may be at higher risk of developing a second primary cancer.
ARTICLE

National Disease Registration Service (NDRS)

The National Disease Registration Service (NDRS) is an international leader in population-based disease registration services, real-world clinical data, quality assurance, surveillance, analysis and monitoring.

Last edited: 22 October 2026 1:05 pm