[ { "phenotype_id": "PH3977", "phenotype_version_id": 9174, "name": "asthma", "definition": "This codelist was taken from [OpenCodelists](https://www.opencodelists.org/), created by [OpenSAFELY](https://www.opensafely.org/). We recommend viewing this Phenotype on the OpenCodelist website to view the most recent version.\n\n\n© University of Oxford for the Bennett Institute for Applied Data Science 2025\\. This work may be copied freely for non\\-commercial research and study.\n\n", "implementation": null, "publications": null, "validation": null, "citation_requirements": null, "created": "2026-01-26T23:41:58.316296Z", "author": "QMUL Multimorbidity", "collections": [ { "name": "OpenCodelist", "value": 31 }, { "name": "Phenotype Library", "value": 18 } ], "tags": null, "organisation": { "id": 1, "slug": "opensafely", "name": "OpenSAFELY" }, "world_access": 1, "updated": "2026-01-26T23:41:58.310881Z", "references": [], "signed_off": [], "methodology": "", "coding_system": [ { "name": "Read codes v2", "value": 5 } ], "open_codelist_id": "qmul-multimorbidity/asthma", "source_reference": "https://www.opencodelists.org/codelist/qmul-multimorbidity/asthma/52767cf5", "concept_information": [ { "concept_id": 9351, "concept_version_id": 16836, "concept_name": "qmul-multimorbidity/asthma/52767cf5", "coding_system": { "id": 5, "name": "Read codes v2", "description": "Read codes v2" }, 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"Cambridge" } }, { "code": "493 AA", "description": "Asthma", "attributes": { "Medcode": "75049", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AB", "description": "Asthma", "attributes": { "Medcode": "74093", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AD", "description": "Asthma", "attributes": { "Medcode": "81364", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AE", "description": "Asthma", "attributes": { "Medcode": "74778", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AI", "description": "Asthma", "attributes": { "Medcode": "74627", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AJ", "description": "Asthma", "attributes": { "Medcode": "84312", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 AK", "description": 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"ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 EB", "description": "Asthma", "attributes": { "Medcode": "74348", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 EP", "description": "Asthma", "attributes": { "Medcode": "81835", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 GR", "description": "Asthma", "attributes": { "Medcode": "78930", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 GS", "description": "Asthma", "attributes": { "Medcode": "84251", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 HT", "description": "Asthma", "attributes": { "Medcode": "76765", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "493 JC", "description": "Asthma", "attributes": { "Medcode": "78239", "ReadcodeDescr": "None", "Category": "None", "Provenance": 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"Provenance": "Cambridge" } }, { "code": "691 TM", "description": "Asthma", "attributes": { "Medcode": "84275", "ReadcodeDescr": "None", "Category": "None", "Provenance": "Cambridge" } }, { "code": "H312000", "description": "Asthma", "attributes": { "Medcode": "5798", "ReadcodeDescr": "Chronic asthmatic bronchitis", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33..00", "description": "Asthma", "attributes": { "Medcode": "78", "ReadcodeDescr": "Asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330.00", "description": "Asthma", "attributes": { "Medcode": "7146", "ReadcodeDescr": "Extrinsic (atopic) asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330000", "description": "Asthma", "attributes": { "Medcode": "14777", "ReadcodeDescr": "Extrinsic asthma without status asthmaticus", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330011", "description": "Asthma", "attributes": { "Medcode": "5627", "ReadcodeDescr": "Hay fever with asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330100", "description": "Asthma", "attributes": { "Medcode": "27926", "ReadcodeDescr": "Extrinsic asthma with status asthmaticus", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330.11", "description": "Asthma", "attributes": { "Medcode": "2290", "ReadcodeDescr": "Allergic asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330111", "description": "Asthma", "attributes": { "Medcode": "6707", "ReadcodeDescr": "Extrinsic asthma with asthma attack", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330.12", "description": "Asthma", "attributes": { "Medcode": "1208", "ReadcodeDescr": "Childhood asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330.13", "description": "Asthma", "attributes": { "Medcode": "15248", "ReadcodeDescr": "Hay fever with asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330.14", "description": "Asthma", "attributes": { "Medcode": "7731", "ReadcodeDescr": "Pollen asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H330z00", "description": "Asthma", "attributes": { "Medcode": "45782", "ReadcodeDescr": "Extrinsic asthma NOS", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331.00", "description": "Asthma", "attributes": { "Medcode": "5267", "ReadcodeDescr": "Intrinsic asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331000", "description": "Asthma", "attributes": { "Medcode": "29325", "ReadcodeDescr": "Intrinsic asthma without status asthmaticus", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33..11", "description": "Asthma", "attributes": { "Medcode": "1555", "ReadcodeDescr": "Bronchial asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331100", "description": "Asthma", "attributes": { "Medcode": "58196", "ReadcodeDescr": "Intrinsic asthma with status asthmaticus", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331.11", "description": "Asthma", "attributes": { "Medcode": "3665", "ReadcodeDescr": "Late onset asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331111", "description": "Asthma", "attributes": { "Medcode": "18323", "ReadcodeDescr": "Intrinsic asthma with asthma attack", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H331z00", "description": "Asthma", "attributes": { "Medcode": "45073", "ReadcodeDescr": "Intrinsic asthma NOS", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H332.00", "description": "Asthma", "attributes": { "Medcode": "25796", "ReadcodeDescr": "Mixed asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H333.00", "description": "Asthma", "attributes": { "Medcode": "185", "ReadcodeDescr": "Acute exacerbation of asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H334.00", "description": "Asthma", "attributes": { "Medcode": "40823", "ReadcodeDescr": "Brittle asthma", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H335.00", "description": "Asthma", "attributes": { "Medcode": "106805", "ReadcodeDescr": "Chronic asthma with fixed airflow obstruction", "Category": "Diagnosis of Asthma", "Provenance": "Kuan" } }, { "code": "H33z.00", "description": "Asthma", "attributes": { "Medcode": "4442", "ReadcodeDescr": "Asthma unspecified", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33z000", "description": "Asthma", "attributes": { "Medcode": "4892", "ReadcodeDescr": "Status asthmaticus NOS", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33z011", "description": "Asthma", "attributes": { "Medcode": "233", "ReadcodeDescr": "Severe asthma attack", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33z100", "description": "Asthma", "attributes": { "Medcode": "232", "ReadcodeDescr": "Asthma attack", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33z.11", "description": "Asthma", "attributes": { "Medcode": "32727", "ReadcodeDescr": "Hyperreactive airways disease", "Category": "Diagnosis of Asthma", "Provenance": "Kuan and Cambridge" } }, { "code": "H33z111", "description": "Asthma", "attributes": { "Medcode": "8335", "ReadcodeDescr": "Asthma attack NOS", "Category": "Diagnosis of Asthma", "Provenance": 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