Alanine aminotransferase (ALT) tests

PH3265 / 8255

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/alanine-aminotransferase-alt-tests
    Version ID
    11d2e678
    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.

    This codelist was developed to identify patients receiving a alanine transferaminase test, as an indicator of a liver function test.

    © 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 searched SNOMED CT for "alanine aminotransferase" and selected all codes with reference to the test measurement or level.

    Original signoff [2298df3e] by Richard Croker and Brian Mackenna (April 2021) Updated version [11d2e678] by Richard Croker and Andrew Brown (Feb 2025)

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/alanine-aminotransferase-alt-tests/11d2e678

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3265/version/8255/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(
     'PH3265',
     version_id=8255
    )

    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(
     'PH3265',
     version_id=8255
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3265/version/8255/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(
     'PH3265',
     version_id=8255
    )

    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(
     'PH3265',
     version_id=8255
    )

  7. Version History

    Version IDNameOwnerPublish date
    Alanine aminotransferase (ALT) tests ieuan.scanlon2026-01-26 23:08
    8254 Alanine aminotransferase (ALT) tests ieuan.scanlon2026-01-26 23:08