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KO41a Hospital and Community Health Services Complaints collection

Frequency: Annual 

Access Data on Written Complaints in the NHS

Background to the collection

All NHS organisations and those delivering NHS services are required to submit an annual KO41a return. These data were previously collected quarterly but from the 2022-23 reporting period will be collected annually.

The information obtained from the Ko41a collection monitors written complaints received by the NHS regarding Hospital and Community Health Services and final published data are available through the Data on Written Complaints publication

The data required for this collection are:

  • organisation details and organisation site details
  • summary of overall numbers of complaints
  • age of patient
  • status of complainant
  • service area
  • subject area of complaint
  • profession

Launch and submission dates 2022 - 2023

Reporting period

Submission start date 

Submission end date 

1 April 2022 - 31 March 2023 26 June 2023 4 August 2023


SDCS data collection system

Last edited: 15 June 2023 2:10 pm