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KO41A Hospital and Community Health Services Complaints Collection

Frequency: Quarterly

Access Data on Written Complaints in the NHS

Background to the collection

The Hospital and Community Health Services Complaints Collection (KO41a) has been accepted by the Standardisation Committee for Care Information (SCCI) and is now mandatory.

All NHS organisations and those delivering NHS services are required to submit Quarterly returns to NHS Digital.

The information obtained from the KO41a collection monitors written hospital and community health service complaints received by the NHS. It also supports the commitment given in equity and excellence to improve the patient experience by listening to the public voice. The data required for this collection is as follows:

  • section 1: organisation details and organisation site details 
  • section 2: Summary of overall numbers of complaints
  • section 3: Age of patient         
  • section 4: Status of complainant
  • section 5: Service area
  • section 6: Subject area of clinical treatment with sub-categories
  • section 7: Subject area
  • section 8: Profession

Launch and submission dates 2020 - 2021

Reporting period

Submission start date 

Submission end date 

Q3: 1 October 2020 to 31 December 2020

5 April 2021

14 May 2021 

Q4: 1 January 2021 to 31 March 2021

5 April  2021

14 May 2021


SDCS data collection system

Last edited: 15 January 2021 12:24 pm