Valvular atrial fibrillation

PH3795 / 8948

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/valvular-atrial-fibrillation
    Version ID
    6cab4902
    Coding System
    Read codes v3
    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.

    Codes indicating incident/ history of valvular atrial fibrillation (codes indicating artificial valves and mitral stenosis).

    © 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

    These codes were mapped first in SNOMED using the opencodelist builder. The search terms used were:

    • aortic valve implantation
    • artificial heart valve
    • disease of mitral and aortic valve
    • heart valve prosthesis
    • heart valve replacement
    • mitral and aortic
    • mitral and tricuspid
    • mitral stenosis
    • mitral valve disease
    • mitral valve disorder
    • mitral valve stenosis
    • mitral valvotomy
    • mitral valvuloplasty
    • multiple valve
    • prosthetic heart valve
    • repair of mitral valve
    • replacement of mitral valve
    • replacement of aortic valve
    • replacement of truncal valve

    414 codes were identified in SNOMED. Of them, 53 were excluded because they only indicated physical object, e.g. cardiac valve prosthesis, device (not the procedure itself), cine study of artificial heart valve, Computed tomography angiography planning or the specimen of heart valve.

    The codes were discussed by 1 practicing clinician and 1 epidemiologist. A summary of the discussion is available on the github issue below.

    These codes were mapped to CTV3 which resulted in 141 codes.

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/valvular-atrial-fibrillation/6cab4902

    References

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3795/version/8948/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(
     'PH3795',
     version_id=8948
    )

    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(
     'PH3795',
     version_id=8948
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3795/version/8948/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(
     'PH3795',
     version_id=8948
    )

    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(
     'PH3795',
     version_id=8948
    )

  7. Version History

    Version IDNameOwnerPublish date
    Valvular atrial fibrillation ieuan.scanlon2026-01-26 23:34