Methotrexate (oral)

PH3565 / 8639

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/methotrexate-oral
    Version ID
    26ee05e8
    Coding System
    dm+d 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.

    dm+d codelist for oral methotrexate

    © 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

    This codelist was developed based on methodology used in the DataLab paper on trends and variation in unsafe prescribing of methotrexate published in the British Journal of General Practice. All oral methotrexate preparations from chapter 10 of BNF codes were included although the vast majority of prescriptions will be for tablets. You can view the BNF codelist version here

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/methotrexate-oral/26ee05e8

    References

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3565/version/8639/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(
     'PH3565',
     version_id=8639
    )

    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(
     'PH3565',
     version_id=8639
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3565/version/8639/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(
     'PH3565',
     version_id=8639
    )

    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(
     'PH3565',
     version_id=8639
    )

  7. Version History

    Version IDNameOwnerPublish date
    Methotrexate (oral) ieuan.scanlon2026-01-26 23:22
    8638 Methotrexate (oral) ieuan.scanlon2026-01-26 23:22
    8637 Methotrexate (oral) ieuan.scanlon2026-01-26 23:22