Asthma Diagnosis

PH3290 / 8283

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/asthma-diagnosis
    Version ID
    66f08cca
    Version Tag
    2020-04-15
    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 an asthma diagnosis

    © 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 derived by the following method:

    • Read 2 Codelist provided by LSHTM. This codelist had been used in Nissen et al (see references)
    • Codes from Quality Outcome Framework (QOF) were examined and relevant asthma codes taken
    • Codes from SNOMED were taken by searching for relevant asthma terms

    These 3 lists were mapped into CTV3 by TPP to create one list. This list was examined by 2 people and the following logic applied (see github issue for more detail):

    • Codes that related to inhalers (such as inhaler technique) or steroids were excluded as were not felt to be asthma specific
    • Codes for generic respiratory disease were excluded for similar reasons
    • Specific bronchitis was excluded if not included with asthma (such as chronic asthmatic bronchitis)
    • Some occupation causes of respiratory disease such as wood pulp workers disease or byssinosis were excluded as not asthma diagnosis
    • All drug codes were excluded as these are cover in another codelist

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/asthma-diagnosis/2020-04-15

    References

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3290/version/8283/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(
     'PH3290',
     version_id=8283
    )

    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(
     'PH3290',
     version_id=8283
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3290/version/8283/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(
     'PH3290',
     version_id=8283
    )

    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(
     'PH3290',
     version_id=8283
    )

  7. Version History

    Version IDNameOwnerPublish date
    Asthma Diagnosis ieuan.scanlon2026-01-26 23:09