Integrated Urgent Care Aggregate Data Collection (IUCADC including NHS111) Statistics Apr 2021-Mar 2022

Integrated Urgent Care (IUC) describes a range of services including NHS 111 and Out of Hours services, which aim to ensure a seamless patient experience with minimum handoffs and access to a clinician where required.

Access to the IUC landing page can be found here:
Integrated Urgent Care Aggregate Data Collection

Data below includes:

  • IUC ADC Official Statistics
  • IUC ADC Provisional Statistics
  • NHS 111 Patient Experience Statistics

Office for National Statistics (ONS) Clinical Commissioning Group (CCG) population estimates can be used to create estimates for each Integrated Urgent Care area using mid-year resident population estimates or population projections for that year.  These data can be found here:  Population projections for clinical commissioning groups and NHS regions: Table 3 – Office for National Statistics

The following IUCADC flowchart was created to show how patients interacted with the 111 IUC service during 2021/22.

Click on the image to enlarge it.  (IUC Flowchart, PNG, 136KB)

IUC ADC – Official Statistics

The IUC ADC became the official source of IUC statistics in April 2021, when the NHS 111 Minimum Dataset (NHS 111 MDS) was merged into a revised version of the IUC ADC. Since then, a provisional subset of the IUC ADC data is published in the month after the collection end date (eg, April data published in May), with the complete monthly IUC ADC published as Official Statistics the following month (eg, April data published in June). The IUC ADC specification is reviewed and updated annually which means not all data items will be directly comparable with the same data items collected in the previous year.  The IUC ADC is used to monitor the IUC KPIs.

Statistical Notes and Data Quality Statements
Statistical Note for March 2022 (PDF, 128KB) (12 May 2022) 
Data Quality Statement for March 2022 (PDF, 356KB)
Statistical Note for February 2022 (PDF, 140KB) (14 April 2022) 
Data Quality Statement for February 2022 (PDF, 356KB)
Statistical Note for January 2022 (PDF, 141KB) (10 March 2022) 
Data Quality Statement for January 2022 (PDF, 349KB)
Statistical Note for December 2021 (PDF, 157KB) (10 February 2022) 
Data Quality Statement for December 2021 (PDF, 375KB)
Statistical Note for November 2021 (PDF, 122KB) (13 January 2022) 
Data Quality Statement for November 2021 (PDF, 345KB)
Statistical Note for October 2021 (PDF, 121KB) (9 December 2021) 
Data Quality Statement for October 2021 (PDF, 360KB)

Revisions to IUCADC official statistics for the months April 2021 to September 2021 inclusive were published with the March 2022 data.
At the national level the revisions affected the whole period, and each data item has had at least one change.
Some figures in the Statistical Notes or comments in the Data Quality Statements for those months (listed below) may no longer be relevant where they refer to figures that have since been revised.

Summary of Revisions:  IUC ADC Revisions Summary April 2021-Sepember 2021 (XLSX, 414KB) 

Statistical Note for September 2021 (PDF, 78KB) (11 November 2021) 
Data Quality Statement for September 2021 (PDF, 351KB)
Statistical Note for August 2021 (PDF, 82KB) (14 October 2021) 
Data Quality Statement for August 2021 (PDF, 313KB)
Statistical Note for July 2021 (PDF, 79KB) (9 September 2021) 
Data Quality Statement for July 2021 (PDF, 312KB)
Statistical Note for June 2021 (PDF, 82KB) (12 August 2021) 
Data Quality Statement for June 2021 (PDF, 387KB)
Statistical Note for May 2021 (PDF, 74KB) (8 July 2021) 
Data Quality Statement for May 2021 (PDF, 366KB)
Statistical Note for April 2021 (PDF, 87KB) (10 June 2021) 
Data Quality Statement for April 2021 (PDF, 276KB)

Excel Data
Data Time Series to March 2022 (XLSX, 4,275KB)

CSV Data
Data to March 2022 (CSV, 4,964KB)

IUC ADC – provisional statistics

These data are a subset of the complete monthly IUC ADC, focusing on key data items, which are collected weekly and aggregated for publication within two weeks after the collection end date (eg, April data published in May). Provisional figures will only be published one month at a time as these data are subject to change and should be treated as estimates until the complete IUC ADC Official Statistics are published the following month.

Statistical Notes
Statistical Note for March 2022 (PDF, 89KB) (14 April 2022)

Excel Data
Aggregated IUC ADC Provisional Statistics March 2022 (XLSX, 175KB)

CSV Data
Aggregated IUC ADC Raw Data March 2022 (CSV, 3,887KB)
Aggregated IUC ADC Raw Data February 2022 (CSV, 3,480KB)
Aggregated IUC ADC Raw Data January 2022 (CSV, 3,897KB)
Aggregated IUC ADC Raw Data December 2021 (CSV, 3,577KB)
Aggregated IUC ADC Raw Data November 2021 (CSV, 3,753KB)
Aggregated IUC ADC Raw Data October 2021 (CSV, 3,866KB)
Aggregated IUC ADC Raw Data September 2021 (CSV, 3,763KB)
Aggregated IUC ADC Raw Data August 2021 (CSV, 3,906KB)
Aggregated IUC ADC Raw Data July 2021 (CSV, 3,849KB)
Aggregated IUC ADC Raw Data June 2021 (CSV, 3,364KB)
Aggregated IUC ADC Raw Data May 2021 (CSV, 3,369KB)
Aggregated IUC ADC Raw Data April 2021 (CSV, 3,242KB)

Specification guidance from April 2021
IUC ADC Specification 2021-22 v1.3 (PDF, 217KB) Updated 16 June 2021
NHS England IUC Key Performance Indicators 2021-22, v1.1 (PDF, 152KB) Updated 25 June 2021
NHS England letter to Commissioners re IUC KPIs Adherence (PDF, 145KB) Updated 16 August 2021 (annex updated)
IUC ADC Glossary (XLSX, 24KB)  Updated 21 May 2021
IUC ADC Dx Code Mapping (XLSX, 29KB) Updated 18 October 2021
IUC DoS Service Type Mapping (XLSX, 33KB) Updated 9 December 2021
Mapping ADC & MDS Changes from April 2021 (XLSX, 36KB) Updated 12 July 2021

NHS111 Patient Experience Survey

The Patient Experience Survey (PES) was introduced in 2011, by the Integrated Urgent Care (IUC) Service to provide patient feedback about the NHS 111 and IUC service.  Surveys are carried out locally by service provider organisations using a variety of methods (paper, telephone and online).  The results of mandatory questions are published twice a year.

Statistical Notes
NHS111 Patient Experience Survey October 2021 to March 2022 Statistical Note (PDF, 99KB)

Excel Data
NHS111 Patient Experience Survey Time Series to 31-03-2022 (XLSX, 313KB)

CSV Data
The raw CSV data below was corrected on 6th March 2023 to rectify a misalignment of data for the September 2021-March 2022 reporting period.
NHS111 Patient Experience Survey Raw Data September 2015 to March 2022 (CSV, 86KB)

The survey specification is available here:
IUC NHS111 Patient Experience Survey Specification (PDF, 322KB)


Data Quality
Data for the IUC ADC are provided by lead data providers for each integrated urgent care service in England. It is the responsibility of commissioners of an IUC service to identify lead data providers and ensure that data are supplied each month. While lead data providers are responsible for collating and coordinating information for IUC ADC, they are not necessarily contracted to deliver all NHS 111 and out of hours services in the contract area. Integrated Urgent Care is provided by a variety of organisations, including ambulance services, private companies, not for profit organisations and NHS Trusts. The quality of data in this report is therefore dependent upon all parts of the IUC service supplying data to the relevant lead data provider.

Revisions will be published periodically (usually every six months) in line with NHS England Analytical Service team’s revisions policy.

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

111 Operational Insights Team
NHS England
7 & 8 Wellington Place,
Leeds LS1 4AP


For press enquiries, please contact the NHS England press office on 0113 825 0958 or