Submitting Diagnostic Imaging Data Set (DIDS) data
How to submit
For DIDS v2.0 the data platform for DIDS submissions is changing from the DIDS portal to the National Data Integration Tenant (NDIT).
There will be a time period when submissions of both DIDS v1.0 and DIDS v2.0 data can be submitted concurrently.
Only activity which took place before 1 April 2026 can be submitted in DIDS v1.0 to the DIDS portal.
All in scope activity from 1 April 2026 onwards must be submitted in DIDS v2.0 through the NDIT.
Submission timetable
DIDS v2.0 provisional and final processing submission model timetable
Data submissions for DIDS v2.0 are based upon fixed reporting periods. There is a period of six months for each final submission to be undertaken for the first year of DIDS v2.0 being implemented. The six month period to make final submissions is in place to support the sector in implementing the changes required for the new version of the data set.
Data submissions are required every month starting from 1 May 2026, for submission of April 2026 data with a defined provisional and final submission model shown in the timetable below.
NHS England processes submissions at two points during the six month reporting window. Submissions made in the first month of the submission window are processed as the provisional submission of the respective reporting period and produce provisional statistics. Any submissions made from this point until the end of the six month period before the submission window closes are also defined as provisional.
At the end of the six month period, NHS England runs final processing on submissions for final national analysis and reporting purposes.
| Activity month/reporting period | Submission window opens | Provisional processing deadline at 11.59.59 pm | Submission window closes at 11.59.59 pm |
|---|---|---|---|
| April 2026 | 1 May 2026 | 31 May 2026 | 31 October 2026 |
| May 2026 | 1 June 2026 | 30 June 2026 | 30 November 2026 |
| June 2026 | 1 July 2026 | 31 July 2026 | 31 December 2026 |
| July 2026 | 1 August 2026 | 31 August 2026 | 31 January 2027 |
| August 2026 | 1 September 2026 | 30 September 2026 | 28 February 2027 |
| September 2026 | 1 October 2026 | 31 October 2026 | 31 March 2027 |
| October 2026 | 1 November 2026 | 30 November 2026 | 30 April 2027 |
| November 2026 | 1 December 2026 | 31 December 2026 | 31 May 2027 |
| December 2026 | 1 January 2027 | 31 January 2027 | 30 June 2027 |
| January 2027 | 1 February 2027 | 28 February 2027 | 31 July 2027 |
| February 2027 | 1March 2027 | 31 March 2027 | 31 August 2027 |
| March 2027 | 1 April 2027 | 30 April 2027 | 30 September 2027 |
Be aware
NHS England cannot accommodate requests for extensions to these submission dates.
At the end of the submission window, NHS England begins substantial activity to process the data submitted by all providers in order to make it fit for purpose for disseminating in a timely way to a variety of secondary users, and for delivering official statistics with pre-announced publication dates.
The burden involved in rerunning these processes across all these organisations would be substantial and not something that the health system would be able to accommodate. It is in order to balance this that we allow data providers a six-month window to make submissions.
In addition, functionality is planned to make test submissions, with fast data quality feedback and to make resubmissions, so that providers have everything possible to make a complete submission prior to the deadline.
- during the submission window, providers can make as many submissions as are needed
- submissions ahead of the provisional processing deadline are strongly encouraged to enable timely data to be available for operational decision making and planning purposes
- there will be no requirement for providers to do any further submissions after provisional processing if the quality of their existing submission is sufficient and no data has changed
- any files submitted to and accepted by NDIT overwrite previously submitted files for DIDS v2.0 data. It is therefore imperative that providers thoroughly check their data submission, as there are no opportunities to re-submit data for a time period once the submission window has closed
- NHS England will use the ‘last good file’ that passed validation, by either the provisional processing deadline or once the submission deadline window has closed at the end of month six, for national analysis and reporting
- following the first year of DIDS v2.0 being implemented, DIDS will move to a three- month period to make final submissions instead of the six-month period set out above
- this timetable will be refreshed well in advance of that taking effect for April 2027 activity
DIDS v1.0
What to submit
For more information read the SCCI1577: Diagnostic Imaging Data Set Information Standard.
How to submit
Learn more about about submitting data for DIDS v1.0.
Submission timetable
Read the submission timetable for DIDs v1.0
Last edited: 12 March 2026 2:19 pm