Sodium tests (numerical value)

PH3729 / 8854

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/sodium-tests-numerical-value
    Version ID
    1f50a646
    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.

    A SNOMED CT codelist for patients receiving monitoring of sodium levels, with a numerical value.

    © 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

    We identified the full set of sodium level codes (see sodium tests codelist), and excluded any codes which did not have at least 10 thousand codes in EMIS and SystmOne recorded in 2020, where a reasonable proportion had numerical values attached.

    Original signoff [32bff605] by Richard Croker and Brian Mackenna (April 2021) Updated version [1f50a646] by Richard Croker and Andrew Brown (Feb 2025)

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/sodium-tests-numerical-value/1f50a646

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3729/version/8854/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(
     'PH3729',
     version_id=8854
    )

    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(
     'PH3729',
     version_id=8854
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3729/version/8854/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(
     'PH3729',
     version_id=8854
    )

    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(
     'PH3729',
     version_id=8854
    )

  7. Version History

    Version IDNameOwnerPublish date
    Sodium tests (numerical value) ieuan.scanlon2026-01-26 23:31
    8853 Sodium tests (numerical value) ieuan.scanlon2026-01-26 23:31