[
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    "phenotype_id": "PH2166",
    "phenotype_version_id": 4936,
    "name": "Abdominal aortic aneurysm diagnosis codes",
    "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\nTaken from the `AAA_COD` refset published by NHSD. Contains public sector information licensed under the UK Open Government Licence v3\\.0 (https://www.nationalarchives.gov.uk/doc/open\\-government\\-licence/version/3/).\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",
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            "description": "Emergency replacement of aneurysmal segment of infrarenal abdominal aorta by anastomosis of aorta to aorta",
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            "description": "Repair of aortic abdominal aneurysm using straight graft",
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