Lower respiratory tract infection - secondary care

PH3551 / 8618

OpenSAFELY

Jan 26, 2026

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OpenCodelists Phenotype

  1. Overview

    Codelist ID
    opensafely/lower-respiratory-tract-infection-secondary-care
    Version ID
    21c94e19
    Coding System
    ICD10 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.

    Identifies lower respiratory tract infections in hospital admissions.

    © 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 is part of a validated algorithm to identify chronic obstructive pulmonary disease (COPD) exacerbation (see reference). COPD exacerbation in secondary care is identified if any of the following criteria are met: 1) COPD exacerbation specific code (COPD exacerbation codelist) in any position. 2) COPD diagnosis code (COPD secondary care codelist) in first position. 3) Lower respiratory tract infection code (this codelist) in first position and a COPD diagnosis code in any position.

    Discussion here: https://github.com/opensafely/codelist-development/issues/185

  4. References

    Source Reference

    https://www.opencodelists.org/codelist/opensafely/lower-respiratory-tract-infection-secondary-care/21c94e19

    References

  5. Clinical Codelist

  6. API

    To Export Phenotype Details:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3551/version/8618/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(
     'PH3551',
     version_id=8618
    )

    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(
     'PH3551',
     version_id=8618
    )

    To Export Phenotype Code List:

    FormatAPI
    JSON site_root/api/v1/phenotypes/PH3551/version/8618/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(
     'PH3551',
     version_id=8618
    )

    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(
     'PH3551',
     version_id=8618
    )

  7. Version History

    Version IDNameOwnerPublish date
    Lower respiratory tract infection - secondary care ieuan.scanlon2026-01-26 23:21