[
  {
    "phenotype_id": "PH3261",
    "phenotype_version_id": 8249,
    "name": "Acute transverse myelitis ICD-10",
    "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\nAcute transverse myelitis ICD\\-10 codelist for use with hospital and mortality data\n\n\nCodelist aims to be specific rather than sensitive, and to describe acute transverse myelitis occuring on its own rather than myelitis as part of a broader disease process such as encephalomyelitis or ADEM. Does not include codes which are not specific to acute transverse myelitis, e.g. such as 'Encephalitis, myelitis and encephalomyelitis'.\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": "2026-01-26T23:08:01.562432Z",
    "author": "OpenSAFELY",
    "collections": [
      {
        "name": "OpenCodelist",
        "value": 31
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": {
      "id": 1,
      "slug": "opensafely",
      "name": "OpenSAFELY"
    },
    "world_access": 1,
    "updated": "2026-01-26T23:08:01.553474Z",
    "references": [
      {
        "url": "https://brightoncollaboration.us/aesi-case-definition-companion-guide-acute-myelitis/",
        "title": "Brighton collaboration AESI companion guide: acute myelitis"
      }
    ],
    "signed_off": [],
    "methodology": "Search and strategy documented on Github here https://github.com/opensafely/codelist\\-development/issues/135\n\n\nNote The Brighton collaboration definition of acute myelitis additionally includes G37\\.9 described as 'Myelitis, transverse' in the Brighton template, but not included here as it is defined as 'Demyelinating disease of central nervous system, unspecified' in the WHO ICD\\-10 browser (2019\\)\n\n",
    "coding_system": [
      {
        "name": "ICD10 codes",
        "value": 4
      }
    ],
    "open_codelist_id": "opensafely/acute-transverse-myelitis-icd-10",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/acute-transverse-myelitis-icd-10/323243cb",
    "concept_information": [
      {
        "concept_id": 8426,
        "concept_version_id": 15911,
        "concept_name": "opensafely/acute-transverse-myelitis-icd-10/323243cb",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH3261",
        "phenotype_version_id": 8249,
        "phenotype_name": "Acute transverse myelitis ICD-10",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "G373",
            "description": "Acute transverse myelitis in demyelinating disease of central nervous system",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "323243cb",
    "open_codelist_version_tag": "",
    "status": 1,
    "doi": "https://doi.org/10.48533/e4m9-qg95",
    "is_deleted": false,
    "publish_status": 2,
    "owner": "ieuan.scanlon",
    "template": {
      "id": 3,
      "name": "OpenCodelists Phenotype",
      "description": "OpenSafely's OpenCodelist Phenotype, visit https://www.opencodelists.org/ to learn more",
      "version_id": 1
    },
    "versions": [
      {
        "version_id": 8249,
        "version_name": "Acute transverse myelitis ICD-10",
        "version_date": "2026-01-26T23:08:01.575447Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]