Read Coded Clinical Terms

The last release of Read Coded Clinical Terms Version 2 was 1st April 2016.

The last release of UK Read Coded Clinical Terms Version 3 was April 2018.

Basic maintenance support will be provided until April 2020.

Information on the withdrawal of Read Coded Clinical Terms Version 2 and CTV3 can be found on the NHS Digital website at: Read Codes.

The Read Coded Clinical Terms are a comprehensive computerised coded thesaurus for use by clinicians. They are available in two main formats, known as Version 2 and Clinical Terms Version 3 (CTV3). They are designed for use in the electronic health care record. Clinical Terms Version 3 (CTV3) of the Read Codes is a "Superset" of all the codes from the earlier versions.

Read Coded Clinical Terms are not acceptable directly for coding Hospital Episode Statistics which are extracted from the Admitted Patient Care Commissioning Data Sets. Version 2 and Clinical Terms Version 3 (CTV3) of the Read Codes contain mapping tables which can be used to generate ICD-10 and OPCS-4 codes.

For further information on Read Coded Clinical Terms, see the NHS Digital website at: Read Codes.

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