COVID-19 A&E diagnosis codes

PH3354 / 8359

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/covid-19-ae-diagnosis-codes
    Version ID
    1df1c0b2
    Coding System
    SNOMED CT codes
    Collections
    OpenCodelistPhenotype Library
    Tags
    No data

  2. Definition

    This codelist was taken from OpenCodelists, created by OpenSAFELY. We recommend viewing this Phenotype on the OpenCodelist website to view the most recent version.

    SNOMED diagnosis codes for identifying people presenting to A\&E with COVID-19. These codes are intended for use with NHS Emergency Care Data Set (ECDS) data only. Note that 1240751000000100 is deprecated as of 31 March 2022. The other three codes (1325171000000109, 1325181000000106, 1325161000000102) were introduced on 1 July 2021.

    © University of Oxford for the Bennett Institute for Applied Data Science 2025. This work may be copied freely for non-commercial research and study.

  3. Methodology

    Codes are based on COVID-19 related SNOMED codes in the NHS Emergency Care Data Set (ECDS) Enhanced Technical Output Specification (ETOS) version 4.0. The diagnosis field in ECDS should only contain the codes listed in this document. Note that while ETOS version 4.0 will be implemented on 1 July 2023, the COVID-19 related codes are the same in the previous version (v3.1.1).

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/covid-19-ae-diagnosis-codes/1df1c0b2

    References

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3354/version/8359/detail/?format=json
    R Package

    # Download here

    library(ConceptLibraryClient)


    # Connect to API

    client = ConceptLibraryClient::Connection$new(public=TRUE)


    # Get details of Phenotype

    phenotype_details = client$phenotypes$get_detail(
     'PH3354',
     version_id=8359
    )

    Py Package

    # Download here

    from pyconceptlibraryclient import Client


    # Connect to API

    client = Client(public=True)


    # Get details of Phenotype

    phenotype_detail = client.phenotypes.get_detail(
     'PH3354',
     version_id=8359
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3354/version/8359/export/codes/?format=json
    R Package

    # Download here

    library(ConceptLibraryClient)


    # Connect to API

    client = ConceptLibraryClient::Connection$new(public=TRUE)


    # Get codelist of Phenotype

    phenotype_codelist = client$phenotypes$get_codelist(
     'PH3354',
     version_id=8359
    )

    Py Package

    # Download here

    from pyconceptlibraryclient import Client


    # Connect to API

    client = Client(public=True)


    # Get codelist of Phenotype

    phenotype_codelist = client.phenotypes.get_codelist(
     'PH3354',
     version_id=8359
    )

  7. Version History

    Version IDNameOwnerPublish date
    COVID-19 A&E diagnosis codes ieuan.scanlon2026-01-26 23:13