Diagnostic Imaging Dataset

The Diagnostic Imaging Dataset (DID) is a central collection of detailed information about diagnostic imaging tests carried out on NHS patients, extracted from local Radiology Information Systems (RISs) and submitted monthly.

The DID captures information about referral source and patient type, details of the test (type of test and body site), demographic information such as GP registered practice, patient postcode, ethnicity, gender and date of birth, plus items about waiting times for each diagnostic imaging event, from time of test request through to time of reporting. NHS Digital collect the dataset at patient level. It is reported here in summary form as Official Statistics.

Monthly updates to the DID are provisional but become finalised approximately 3 months later.  The statistics for 2012-13 to 2022-23 have now been finalised and are no longer provisional.

Data

2023-24 DID commentary and tables
2022-23 DID commentary and tables (annual data finalised 23rd November 2023 with new statistical commentary)
2021-22 DID commentary and tables (annual data finalised 15th December 2022 with new statistical commentary)
2020-21 DID commentary and tables (annual data finalised 18th November 2021 with new statistical commentary)
2019-20 DID commentary and tables (annual data finalised 29th October 2020 with new statistical commentary)
2018-19 DID commentary and tables (annual data finalised 19th December 2019 with new statistical commentary)
2017-18 DID commentary and tables (annual data finalised 22nd November 2018 with new statistical commentary)
2016-17 DID commentary and tables (annual data finalised 23rd November 2017 with new statistical commentary)
2015-16 DID commentary and tables (annual data finalised 27th October 2016 with new statistical commentary)
2014-15 DID commentary and tables (annual data finalised 29th October 2015 with new statistical commentary)
2013-14 DID commentary and tables (annual data finalised 7th November 2014 with additional annexes added 25th June 2015)
2012-13 DID commentary and tables  (annual data finalised 31st October 2013 with new statistical commentary)

Supporting documents

Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 12 2022-23 (PDF, 457KB)
Annex 1 DID Exam Lookup Table Modality, version 1 – Nov 23 (XLSX, 316KB)
Annex 2 – DID Data Items V6 (PDF, 451KB)
Annex 5 – DID Interventional procedures version 2 (XLSX, 389KB)

Pre-release Access List

Pre-release access list (PDF, 172KB)

Previous versions

Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 1, 20th December 2012 (DOC, 4.0MB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 2, 31st October 2013 (DOC, 4.8MB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 3, 2013-14 (PDF, 842 KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 4, 2014-15 (PDF, 491KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 5, 2015-16 (PDF, 500KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 6, 2016-17 (PDF, 504KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 7, 2017-18 (PDF, 645KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 8, 2018-19 (PDF,439KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 9, 2019-20 (PDF, 436KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 10, 2020-21 (PDF, 437KB)
Monthly Diagnostic Imaging Dataset Statistics – Technical Report Version 11 2021-22 (PDF, 450KB)

Annex 1 – DID Exam Lookup Table, version 1 (XLS, 1952KB)
Annex 1 – DID Exam Lookup Table, version 8 (XLSX, 599KB)
Annex 1 – DID Exam Lookup Table, version 11 (XLSX, 458KB)
Annex 1 – DID Exam Lookup Table, version 12 (XLSX, 467KB)
Annex 1 – DID Exam Lookup Table, version 15 (XLSX, 504KB)
Annex 1 – DID Exam Lookup Table, version 16 (XLSX, 520KB)
Annex 1 – DID Exam Lookup Table, version 17 (XLSX, 537KB)
Annex 1 – DID Exam Lookup Table, version 18 (XLSX, 522KB)
Annex 1 – DID Exam Lookup Table, version 19 (XLSX, 543 KB)
Annex 1 – DID Exam Lookup Table, version 20 – Jun 19 (XLSX, 496 KB)

Annex 5 – DID Interventional procedures version 1 (XLSX, 360KB)

National Imaging Data Collection

Data on imaging equipment is available from the National Imaging Data Collection (NIDC).
Link to National Imaging Data Collection page.

Contact Us

For further information about the published statistics, please contact us at:

Operational Insights
NHS England
Email: england.did@nhs.net